Department of Internal Medicine Baqiatollah Medical University;
Tehran Hepatitis Center;
92 Vesal Shirazi Street;
Boolvar Keshavarz;
PO Box 14155/3651;
Tehran;
Iran;
Department of Virology Iran University of Medical Sciences;
Hemmat Expressway;
Tehran;
Iran;
Student's Research Committee Iran University of Medical Sciences;
Hemmat Expressway;
Tehran;
Iran;