1. Department of Psychological, Health, and Learning Sciences, University of Houston, Houston, TX, USA
2. Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
3. Department of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
4. Department of Public Health, Ningxia Medical University, Yinchuan, People’s Republic of China
5. Shiraz University of Medical Sciences, Shiraz, Iran