Ana P. Martinez-Donate and Xiao Zhang are with the Department of Population Health Sciences, University of Wisconsin, Madison. Melbourne F. Hovell is with the Graduate School of Public Health, San Diego State University, San Diego, CA. Maria Gudelia Rangel and J. Eduardo Gonzalez-Fagoaga are with El Colegio de la Frontera Norte, Tijuana, Mexico. Carol L. Sipan is with the School of Social Sciences, University of California, Merced. At the time of the study, Carlos Magis-Rodriguez was with the Sexually...