m mahmoodian-shooshtari blood transfusion research center, high institute for research and education in transfusion medicine, tehran z sharifi blood transfusion research center, high institute for research and education in transfusion medicine, tehran se mousavi department of pharmacology, school of medicine, tehran university of medical sciences, tehran, iran sa ahmadi-teymourloyee department of health services management, school of health management and information sciences, tehran university of medical sciences