1. Health Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
2. Faculty of Pharmacy, Damghan Branch, Islamic Azad Univercity, Damghan, Iran
3. Student Research Committee, Baqiyatallah University of Medical Sciences, Tehran, Iran
4. Department of Epidemiology and Biostatistics, School of Health, Baqiyatallah University of Medical Sciences, Tehran, Iran
5. Baqiyatallah Research Center for Gastroenterology and Liver Disease, Baqiyatallah University of Medical Sciences, Tehran, Iran