Cross-cultural adaptation of the Arabic Positive and Negative Syndrome Scale in schizophrenia: Qualitative analysis of a focus group Hassen Al-Amin, Arij Yehya, Yahya Hani, Samer Hammoudeh, Ziyad Mahfoud, Suhaila Ghuloum, Iman Amro, Marvin Opler, A. Khan • 2019
Cell Phone and Face-to-face Interview Responses in Population-based Surveys Abla M. Sibai, Blanche Ghandour, Ali H. Mokdad, Lilian Ghandour, Ziyad Mahfoud • 2015