1. Health Management Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
2. Department of Health Education, Faculty of Health, Baqiyatallah University of Medical Sciences, Tehran, Iran.
3. Health Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
4. Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC.
5. King Abdulaziz University, Jeddah, Saudi Arabia.
6. Ningxia Medical University, Yinchuan, China.