Hepatitis B virus surface antigen and antibody in a selected adult population in the Sudan.
D000293:Adolescent; D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D013397:Sudan
D000914:Antibodies, Viral; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens