1. Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
2. Research Center for Clinical Virology, Tehran University of Medical Sciences, Tehran, Iran
3. Baqiyatallah Research Center for Gastroenterology & Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
4. Middle East Liver Diseases (MELD) Center, Tehran, Iran
5. Liver Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran