title: Rheumatic fever and hepatitis B surface antigen.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D012213:Rheumatic Fever / Q000276:immunology*
chemical_list: D006514:Hepatitis B Surface Antigens