title: Serologic survey of hepatitis B surface antigen among the healthy population in Zimbabwe.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002353:Carrier State / Q000453:epidemiology; D002648:Child; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015030:Zimbabwe
chemical_list: D006514:Hepatitis B Surface Antigens