A comparison of the prevalence of hepatitis-B surface antigen (HBsAg) positivity among hospital and non-hospital personnel.
D001782:Blood Donors; D005260:Female; D006514:Hepatitis B Surface Antigens / Q000276:immunology*; D006801:Humans; D008297:Male; D010564:Personnel, Hospital
D006514:Hepatitis B Surface Antigens