1. Department of Medical Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
2. Iranian Research Center for HIV/AIDS, Iranian Institute for Reduction of High-Risk Behaviors, Tehran University of Medical Sciences, Tehran, Iran
3. Food & Drug Administration, Iran Ministry of Health & Medical Education, Tehran, Iran
4. Colorectal Surgeon, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
5. Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
6. Critical Care & Quality Improvement Research Center, Shahid Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
7. Basic & Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology & Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran