title: Prevalence of hepatitis associated antigen in blood donors at Kanpur.
mesh_terms: D000328:Adult; D001782:Blood Donors; D002353:Carrier State / Q000453:epidemiology; D006509:Hepatitis B / Q000453:epidemiology; D006511:Hepatitis B Antigens; D006801:Humans; D007194:India; D008297:Male; D008875:Middle Aged
chemical_list: D006511:Hepatitis B Antigens