Roberto J Rona
Dados Biográficos
| ID | 6072891 |
|---|---|
| NOME | Roberto J Rona |
| PRENOMES | Roberto J |
| SOBRENOME | Rona |
| ASSINATURA | RONA R J |
| AFILIAÇÕES | St Thomas' Hospital |
| ORCID | 0000-0003-3739-5571 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 45 |
| TOTAL DE CITAÇÕES | 29 |
| TOTAL COMO AUTOR | 45 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1975 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2020 |
| ÍNDICE H | 3 |
Baseline Characteristics and Outcomes of 1591 Patients Infected With Sars-CoV-2 Admitted to ICUs of the Lombardy Region, Italy
Importance: In December 2019, a novel coronavirus (severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2]) emerged in China and has spread globally, creating a pandemic. Information about the clinical characteristics of infected patients who require intensive care is limited. Objective: To characterize patients with coronavirus disease 2019 (COVID-19) requiring treatment in an intensive care unit (ICU) in the Lombardy region of Italy. Desig…
High prevalence of somatic symptoms in a semi-rural Chilean population and its association with depression and anxiety
Our purpose was to study the prevalence of mental disorders with an emphasis on somatic symptoms and their association with social support in a Chilean semi-rural area. We studied a sample of 796 adults born between 1974 and 1978 in Limache, Chile. The Patient Health Questionnaire-9, the Generalized Anxiety Disorder-7, the Patient Health Questionnaire-15 and the Medical Outcomes Study Social Support Scale test were used to assess depression, anxi…
Stigma as a Barrier to Seeking Health Care Among Military Personnel With Mental Health Problems
Approximately 60% of military personnel who experience mental health problems do not seek help, yet many of them could benefit from professional treatment. Across military studies, one of the most frequently reported barriers to help-seeking for mental health problems is concerns about stigma. It is, however, less clear how stigma influences mental health service utilization. This review will synthesize existing research on stigma, focusing on th…
Medical and Welfare Officers beliefs about post-deployment screening for mental health disorders in the UK Armed Forces
Welfare and healthcare providers are well disposed towards a screening programme for mental health but highlight a few concerns in its implementation. In particular Welfare Officers appear to require more training in how to respond to mental ill health. Concerns about available funding and resources to respond to increased workload will need to be addressed should post-deployment screening for mental health be introduced in the UK military
Is waist circumference a better predictor of blood pressure, insulin resistance and blood lipids than body mass index in young Chilean adults
The strength of the associations of WC and BMI for any cardiovascular risk factors was similar, but highest for HOMA and triglycerides. WC and BMI are equally useful for monitoring the consequences of obesity in young adults
OP92 The Impact of Military Deployment, Combat Experiences and Post-Deployment Mental Health Problems on Violent Behaviour among UK Military Personnel
Background There is considerable media, political and public interest on both sides of the Atlantic in an alleged rise in violence among military personnel returned from conflicts in Iraq and Afghanistan. This study explores violence among a large sample of UK military personnel, a proportion of whom had been deployed to Iraq/Afghanistan. The aims were to estimate the prevalence of self-reported violence, examine the impact of deployment and comb…
Agreement between body mass index, waist circumference and skin-fold thickness in the United Kingdom Army
The level of agreement between BMI and waist circumference is acceptable regardless of method to assess obesity, but would be poor for assessing thinness. The level of agreement with sum of skin-folds was mediocre
Size at birth and lipoprotein concentrations in adulthood
BACKGROUND: The relationship between birth weight and plasma lipoproteins is inconsistent. AIMS: To assess the association between birth weight and (1) body mass index (BMI) at birth and (2) lipoproteins in young adults, and also to explore the possible effect of current obesity as a possible effect modifier. METHODS: Two prospective studies based on representative samples of subjects born in the 1970s were carried out in Ribeirão Preto, Brazil (…
Nutritional status, especially body mass index, from birth to adulthood and lung function in young adulthood
BMI and waist circumference in adulthood make a greater impact on lung function in adulthood than anthropometric measurements at birth and infancy. Proxy measures of fatness in adulthood reduce lung function, but the pattern between fatness and lung function by sex may be different
Indoor Risk Factors for Cough and Their Relation to Wheeze and Sensitization in Chilean Young Adults
Objectives. We assessed the effects of indoor risk factors, including smoking, on different types of cough and on cough and wheeze in combination. Methods. Our sample was composed of 1232 men and women residing in a semirural area of Chile. We used a standardized questionnaire, sensitization to 8 allergens, and bronchial hyperresponsiveness to methacholine to assess cough and wheeze characteristics. Information was gathered on dampness, mold, ven…
The Case for Postdeployment Mental Health Screening Was Not Made
The audit evaluation by Seal et al. of the Veterans Administration Postdeployment Mental Health Screening1 demonstrated that half of eligible veterans were not screened (52%) while attending a primary care setting; of those who were screened, the majority were identified as possible cases of posttraumatic stress disorder (69%), but many were not interested in pursuing matters further by attending a mental health facility. Readers are entitled to …
Unmet expectations in primary care and the agreement between doctor and patient
Background Questionnaires completed respectively by doctor and patient may give conflicting views of what actions the doctor took during a consultation in primary care. This disagreement will affect an assessment of whether patient expectations of care were met, and may itself be influenced by fulfilment of expectations. Objective To investigate how patient expectations, and patient and doctor reports of doctor's actions in a primary care setting…
Socioeconomic Risk Factors for Asthma in Chilean Young Adults
Objectives. We studied the association between socioeconomic status (SES) and asthma symptoms, severity of asthma, atopy, and bronchial hyperresponsiveness (BHR) to methacholine. Methods. We studied 1232 men and women born between 1974 and 1978 in a semirural area of Chile. We assessed asthma symptoms with a standardized questionnaire, atopy with a skin-prick test to 8 allergens, and BHR to methacholine with the tidal breathing method. SES was de…
Increasing Pre-Term and Low-Birth- Weight Rates Over Time and Their Impact on Infant Mortality in South-East Brazil
This study investigates the possible effects of pre-term births and low birth weight on infant mortality rates (IMRs) over a 15-year period in Ribeirão Preto, Brazil, based on surveys carried out in 1978/79 and 1994. The 1978/79 survey included 6750 births over a 12-month period and the 1994 survey 2846 births over a 4-month period. Infant deaths were retrieved monthly from the city register. Infant mortality rate decreased from 36·6 to 16·9 deat…
Effect of the choice of food composition table on nutrient estimates
Objective: To determine the level of agreement between the American (Chilean) and British food composition tables in estimating intakes of macronutrients and antioxidants. Design, setting and subjects: Information based on a food-frequency questionnaire with emphasis on antioxidants was collected from 95 Chileans aged 24–28 years. Nutritional composition was analysed using the British table of food composition and the American table of food compo…
Free school meals and children's social and nutritional status in Trinidad and Tobago
Objective: To evaluate the provision of free school meals in Trinidad and Tobago in relation to children's social and nutritional status. Design and methods: Cross-sectional survey of a nationally representative sample of 66 government schools, including children in the admissions classes (aged 4 to 7 years) and classes for ‘rising nines’ (aged 7–10 years). Data included questionnaire details of free school meals and children's social background,…
The relative strength of weight and length at birth in contrast to social factors as determinants of height at 18 years in Brazil
This study has demonstrated the lasting and greater effect of length and weight at birth on height in comparison to social factors, but social factors are still meaningful in their effects on height. Birth length has a marginal greater effect on final height than birth weight
International definitions of overweight and obesity for children
The limitations of the international definitions, due to averaging data from different countries and the choice of reference age, need to be known. The UK cut-off points here presented are compatible with the current UK reference curves
Association between asthma and family size between 1977 and 1994
STUDY OBJECTIVES: Several recent reports show a negative association between asthma and family size or birth order, but this association was not detected in data collected between 10 and 30 years ago. This study compared the association between sibship size and asthma in three surveys using the same methodology in 1977, 1985/86, and 1993/94. DESIGN: Cross sectional comparison of the 1977, 1985/86, and 1993/94 surveys. SETTINGS: Study areas in Eng…
Factors related to total cholesterol and blood pressure in British 9 year olds
STUDY OBJECTIVE: To assess which factors are associated with total cholesterol concentration and blood pressure in 9 year olds, and to examine the extent to which a report of a heart attack in a close relative identifies children with a high total cholesterol value or high systolic blood pressure. DESIGN: This was a cross sectional study. SETTING: The analysis was based on 22 study areas from a representative English sample, 14 areas from a repre…
Factors associated with weight for height and skinfold thickness in British children
STUDY OBJECTIVE--To examine the associations of social and biological factors with measures of obesity in children. DESIGN--The study had a cross sectional design. SETTING--The analyses were based on data from two national study of health and growth cross sectional surveys. The "representative sample" comprised 1990 data from 22 English areas and 1990-91 data from 14 Scottish areas; the "inner city sample" comprised 1991 data from 20 English area…
Physical fitness of 9 year olds in England
STUDY OBJECTIVE--To examine the influence of social factors, passive smoking, and other parental health related factors, as well as anthropometric and other measurements on children's cardiorespiratory fitness. DESIGN--This was a cross sectional study. SETTING--The analysis was based on 22 health areas in England. PARTICIPANTS--The subjects were 299 boys and 282 girls aged 8 to 9 years. Parents did not give positive consent for 15% of the eligibl…
Respiratory conditions, including asthma, and height in primary school
The National Study of Health and Growth (NSHG) of primary school children has examined the relationships between height and each of six separate respiratory conditions, one of which was asthma, in children aged 5-11 years, allowing for a number of genetic and environmental confounding factors, in particular for parental height. The relationships were investigated in a 'representative' sample of 4974 Caucasian English children in 1984 and in an 'e…
Case-control studies in cancer patients as a surveillance system of occupational exposure in the European Community. European Community Working Party
STUDY OBJECTIVE--The main aim was to detect known relationships between lung and blood cancers and various occupational exposures (using job titles as proxies) using a case-control design. The suitability of this system for routine surveillance could then be assessed. DESIGN--A case-control study was carried out in 1989. SETTING--Hospitals in eight European Community countries. SUBJECTS--Men aged 25 to 75 years with incident and prevalent cancer …
Trends in body mass index in young adults in England and Scotland from 1973 to 1988
STUDY OBJECTIVE--The aim was to determine whether the mean body mass index of young adults in England and Scotland had increased during the years 1973 to 1988. DESIGN--The study was an analysis of reported heights and weights for parents of children participating in a mixed longitudinal study of children's growth. SETTING--20 study areas (16 in England and four in Scotland) were selected by stratified random sampling. SUBJECTS--Subjects were pare…
Factors related to total cholesterol and blood pressure in British 9 year olds
STUDY OBJECTIVE: To assess which factors are associated with total cholesterol concentration and blood pressure in 9 year olds, and to examine the extent to which a report of a heart attack in a close relative identifies children with a high total cholesterol value or high systolic blood pressure. DESIGN: This was a cross sectional study. SETTING: The analysis was based on 22 study areas from a representative English sample, 14 areas from a repre…
Trends in body mass index in young adults in England and Scotland from 1973 to 1988
STUDY OBJECTIVE--The aim was to determine whether the mean body mass index of young adults in England and Scotland had increased during the years 1973 to 1988. DESIGN--The study was an analysis of reported heights and weights for parents of children participating in a mixed longitudinal study of children's growth. SETTING--20 study areas (16 in England and four in Scotland) were selected by stratified random sampling. SUBJECTS--Subjects were pare…
Vegetarianism and growth in Urdu, Gujarati, and Punjabi children in Britain
As part of a nutritional surveillance system of primary school children the relation between growth and vegetarianism in the Urdu, Gujarati, and Punjabi groups was explored. The aim of the analysis was to ascertain if vegetarian children from ethnic minorities are at a disadvantage in terms of nutritional status within their group of origin. Data for 80.7% of 473 Urdu children, 86.6% of 551 Gujarati children, and 84.4% of 1265 Punjabi children we…
Factors associated with weight for height and skinfold thickness in British children
STUDY OBJECTIVE--To examine the associations of social and biological factors with measures of obesity in children. DESIGN--The study had a cross sectional design. SETTING--The analyses were based on data from two national study of health and growth cross sectional surveys. The "representative sample" comprised 1990 data from 22 English areas and 1990-91 data from 14 Scottish areas; the "inner city sample" comprised 1991 data from 20 English area…
School meals, school milk and height of primary school children in England and Scotland in the eighties
In a nutritional surveillance system of primary school children in England and Scotland we assessed the possible effects on height gain of changes in school meals and school milk policies following the 1980 Education Act (No. 2). Mean height and height gain were estimated separately for English and Scottish samples from 1982 to 1984, and for a selective sample of inner city areas with a high proportion of ethnic minorities from 1983 to 1985 in ch…
Socioeconomic Risk Factors for Asthma in Chilean Young Adults
Objectives. We studied the association between socioeconomic status (SES) and asthma symptoms, severity of asthma, atopy, and bronchial hyperresponsiveness (BHR) to methacholine. Methods. We studied 1232 men and women born between 1974 and 1978 in a semirural area of Chile. We assessed asthma symptoms with a standardized questionnaire, atopy with a skin-prick test to 8 allergens, and BHR to methacholine with the tidal breathing method. SES was de…
Physical fitness of 9 year olds in England
STUDY OBJECTIVE--To examine the influence of social factors, passive smoking, and other parental health related factors, as well as anthropometric and other measurements on children's cardiorespiratory fitness. DESIGN--This was a cross sectional study. SETTING--The analysis was based on 22 health areas in England. PARTICIPANTS--The subjects were 299 boys and 282 girls aged 8 to 9 years. Parents did not give positive consent for 15% of the eligibl…
Size at birth and lipoprotein concentrations in adulthood
BACKGROUND: The relationship between birth weight and plasma lipoproteins is inconsistent. AIMS: To assess the association between birth weight and (1) body mass index (BMI) at birth and (2) lipoproteins in young adults, and also to explore the possible effect of current obesity as a possible effect modifier. METHODS: Two prospective studies based on representative samples of subjects born in the 1970s were carried out in Ribeirão Preto, Brazil (…
Quantifying health aspects of passive smoking in British children aged 5-11 years
STUDY OBJECTIVE--The aim was to estimate the dose-response relations of height and respiratory symptoms to passive smoking in children aged 5-11 years. DESIGN--The study was an analysis of existing observational studies, comprising three samples: English representative; English inner city; Scottish representative. SETTING--Primary schools (children aged 5-11 years). PARTICIPANTS--The study population included 5002 English children from the repres…
Passive smoking and respiratory conditions in primary school children
The effect of passive smoking on respiratory symptoms of children aged 5 to 11 years was investigated in over 4000 English children and nearly 800 Scottish children participating in the National Study of Health and Growth in 1982. After adjusting for associations of respiratory symptoms with age, sex, and a number of potentially confounding variables, significant associations were found of wheeze, both occasional and persistent, day or night coug…
School meals and the rate of growth of primary school children
The effect of school meals on the rate of growth was assessed in two sets of children over one, two, and three-year periods in England and Scotland between 1973 and 1979. In all analyses children were subdivided into three groups: poor, not poor, and undefined, according to a set of questions on social circumstances. The rate of growth was assessed for children receiving school meals, lunches prepared at home, and those who changed scheme during …
Secular trend of pubertal development in Chile
National Study of Health and Growth
The National Study of Health and Growth (NSHG) was set up in 1972 to monitor growth in primary schoolchildren. Each year 8000 children in England (most parts except the south-east) and 2500 in Scotland are measured. Data from the first year have been used to obtain standards of height, weight and triceps skinfold for ages 5 to 11 inclusive, and ellipse contours of weight by height for each year of age. The distributions of weight and triceps skin…
Social factors and height gain of primary schoolchildren in England and Scotland
Associations between height and certain social factors are known to persist throughout the primary school years. To discover whether the height differences between social groups are increasing or diminishing during this time, heights of 7569 English and Scottish 5 to 10 year olds measured in 1972 and 1973 were examined, together with information about number of siblings, father's social class and father's employment status. With the exception of …
The mode of inheritance of blood pressure levels
In a sample of 465 families living in a suburb of north-west London the systolic and diastolic blood pressure consistently showed a greater correlation for sib/sib (0.16 to 0.28) than for parent/offspring (0.07 to 0.18); this pattern is consistent with the hypothesis of a dominance component in the inheritance of blood pressure assuming there is no difference in the interaction between environment and genes in people of different ages. This assum…
National Study of Health and Growth
The association of social and family factors with triceps skinfold and weight for height and age was assessed using multiple regression analyses for 5-11 year-old-children in England and Scotland. Parents' body build was the factor most consistently associated with the two proxy measures of obesity. Number of siblings in the family was inversely related to triceps skinfold thickness. Parents' body-build and number of siblings were more strongly r…
National Study of Health and Growth
Lower social class, several children, and overweight partner and increasing age were factors significantly associated with overweight in parents aged 20-55 years in England and Scotland. These associations were greater for women than men in both countries. These results support the contention that social circumstances contribute to overweight in adults. However, both the magnitude of the explained variation and the relative risk of each factor fo…
School meals and the rate of growth of primary school children
The effect of school meals on the rate of growth was assessed in two sets of children over one, two, and three-year periods in England and Scotland between 1973 and 1979. In all analyses children were subdivided into three groups: poor, not poor, and undefined, according to a set of questions on social circumstances. The rate of growth was assessed for children receiving school meals, lunches prepared at home, and those who changed scheme during …
The secular trend in the height of primary school children in England and Scotland from 1972–1980
Data from 29 230 children in 22 areas in England and 6 in Scotland were used to estimate the secular trend in height of primary school children over the period 1972-1980. The children were from 15 birth cohorts, born 1961-1975. The method of analysis was selected in order to give estimates from mixed longitudinal data, in which the number of measurements differed from cohort to cohort and children with incomplete data could not be assumed to be c…
The National Study of Health and Growth
The height, weight for height and triceps skinfold of primary school children in England and Scotland in 1972 and 1981 were compared. Children of both sexes aged 5 to 11 years were taller in 1981 than in 1972. The median triceps skinfold and the percentage of children above the 90th centile of the 1972 distribution also increased, more consistently in boys than in girls. Children with fathers who were unemployed at the time of the survey were tal…
National Study of Health and Growth
A new surveillance system was initiated on selected growth and nutritional characteristics of children living in inner-city areas and children from ethnic minorities. The heights of Caucasian, Afro-Caribbean and Indo-Pakistani children in this study were compared with those of children in an existing surveillance study, who were chosen to be representative of the English population. Data for this representative sample were collected in 1982 and f…
National Study of Health and Growth
Baseline results of weight-for-height and triceps skinfold for a sample of Caucasian, Afro-Caribbean and Indo-Pakistani children living in inner-city areas are given and compared with children in an existing surveillance study representative of the English population. The data collected in 1982 for the representative sample and in 1983 for the ethnic groups gave useful information on 13,073 children in the age-range 5-11 years. The Afro-Caribbean…
Secular trends in weight, weight-for-height and triceps skinfold thickness in primary schoolchildren in England and Scotland from 1972 to 1980
Measurements of height, weight and triceps skinfold thickness were obtained from English and Scottish schoolchildren from 15 birth cohorts over the period 1972-1980. Positive trends in weight were found for boys and girls in both countries, but in England they were less than expected from the increases in height. The increase in weight-for-height in Scotland was paralleled by a greater increase in triceps skinfold in Scottish than in English chil…
Vegetarianism and growth in Urdu, Gujarati, and Punjabi children in Britain
As part of a nutritional surveillance system of primary school children the relation between growth and vegetarianism in the Urdu, Gujarati, and Punjabi groups was explored. The aim of the analysis was to ascertain if vegetarian children from ethnic minorities are at a disadvantage in terms of nutritional status within their group of origin. Data for 80.7% of 473 Urdu children, 86.6% of 551 Gujarati children, and 84.4% of 1265 Punjabi children we…
Passive smoking and respiratory conditions in primary school children
The effect of passive smoking on respiratory symptoms of children aged 5 to 11 years was investigated in over 4000 English children and nearly 800 Scottish children participating in the National Study of Health and Growth in 1982. After adjusting for associations of respiratory symptoms with age, sex, and a number of potentially confounding variables, significant associations were found of wheeze, both occasional and persistent, day or night coug…
The secular trend in height of primary school children in England and Scotland 1972–79 and 1979–86
The recent secular trend in height of primary school children was estimated using data from schools participating in the National Study of Health and Growth in 1972, 1979 and 1986. About 50% of the trends from 1972 to 1979 for English and Scottish boys and girls were accounted for by changes in family size, with some contribution from increases in parental height and from birthweight, but almost none from changes in social class distribution. Est…
The validity of reported parental height in inner city areas in England
The validity of self-reported height was assessed in a sample of Afro-Caribbean, Asian and Caucasian parents. Asian mothers overestimated their height (p less than 0.01) and Caucasian mothers overestimated that of their child's father. The standard deviations of the differences between reported and measured height, with the exception of Caucasian mothers, were large (between 4.33 cm and 11.18 cm). It is concluded that self-reported height from su…
School meals, school milk and height of primary school children in England and Scotland in the eighties
In a nutritional surveillance system of primary school children in England and Scotland we assessed the possible effects on height gain of changes in school meals and school milk policies following the 1980 Education Act (No. 2). Mean height and height gain were estimated separately for English and Scottish samples from 1982 to 1984, and for a selective sample of inner city areas with a high proportion of ethnic minorities from 1983 to 1985 in ch…
Father's unemployment and height of primary school children in Britain
In a nutritional surveillance system of 5-11-year-old children the association between father's employment status and his child's height, weight-for-height and their rates of change over 2 years were assessed. The study was carried out in three samples: quasi-representative English sample 1984-86; quasi-representative Scottish samples 1983/84-1985/86; and a sample of English inner city areas 1983-85. For the cross-sectional analysis the sample si…
Quantifying health aspects of passive smoking in British children aged 5-11 years
STUDY OBJECTIVE--The aim was to estimate the dose-response relations of height and respiratory symptoms to passive smoking in children aged 5-11 years. DESIGN--The study was an analysis of existing observational studies, comprising three samples: English representative; English inner city; Scottish representative. SETTING--Primary schools (children aged 5-11 years). PARTICIPANTS--The study population included 5002 English children from the repres…
Trends in body mass index in young adults in England and Scotland from 1973 to 1988
STUDY OBJECTIVE--The aim was to determine whether the mean body mass index of young adults in England and Scotland had increased during the years 1973 to 1988. DESIGN--The study was an analysis of reported heights and weights for parents of children participating in a mixed longitudinal study of children's growth. SETTING--20 study areas (16 in England and four in Scotland) were selected by stratified random sampling. SUBJECTS--Subjects were pare…
The Imprint of time
Respiratory conditions, including asthma, and height in primary school
The National Study of Health and Growth (NSHG) of primary school children has examined the relationships between height and each of six separate respiratory conditions, one of which was asthma, in children aged 5-11 years, allowing for a number of genetic and environmental confounding factors, in particular for parental height. The relationships were investigated in a 'representative' sample of 4974 Caucasian English children in 1984 and in an 'e…
Case-control studies in cancer patients as a surveillance system of occupational exposure in the European Community. European Community Working Party
STUDY OBJECTIVE--The main aim was to detect known relationships between lung and blood cancers and various occupational exposures (using job titles as proxies) using a case-control design. The suitability of this system for routine surveillance could then be assessed. DESIGN--A case-control study was carried out in 1989. SETTING--Hospitals in eight European Community countries. SUBJECTS--Men aged 25 to 75 years with incident and prevalent cancer …
Factors associated with weight for height and skinfold thickness in British children
STUDY OBJECTIVE--To examine the associations of social and biological factors with measures of obesity in children. DESIGN--The study had a cross sectional design. SETTING--The analyses were based on data from two national study of health and growth cross sectional surveys. The "representative sample" comprised 1990 data from 22 English areas and 1990-91 data from 14 Scottish areas; the "inner city sample" comprised 1991 data from 20 English area…
Physical fitness of 9 year olds in England
STUDY OBJECTIVE--To examine the influence of social factors, passive smoking, and other parental health related factors, as well as anthropometric and other measurements on children's cardiorespiratory fitness. DESIGN--This was a cross sectional study. SETTING--The analysis was based on 22 health areas in England. PARTICIPANTS--The subjects were 299 boys and 282 girls aged 8 to 9 years. Parents did not give positive consent for 15% of the eligibl…
Medicine (42 obras) · Demography (33 obras) · Demography (19 obras) · Obesity, Physical Activity, Diet (19 obras) · Environmental health (15 obras) · Internal Medicine (12 obras) · Gerontology (11 obras) · Birth, Development, and Health (10 obras) · Pediatrics (10 obras) · Population (10 obras)