Health status of professional blood donors of Calcutta with special reference to Australia antigen.
D000328:Adult; D001782:Blood Donors; D006306:Health Surveys; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D007194:India; D008297:Male; D008875:Middle Aged
D006514:Hepatitis B Surface Antigens