title: Prevalence of hepatitis B core antibody in family members treating patients with hemophilia.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005169:Factor VIII / Q000008:administration & dosage*; D005190:Family; D006467:Hemophilia A / Q000188:drug therapy*; D006509:Hepatitis B / Q000635:transmission; D006510:Hepatitis B Antibodies / Q000302:isolation & purification*; D006512:Hepatitis B Core Antigens; D006801:Humans; D012306:Risk
chemical_list: D006510:Hepatitis B Antibodies; D006512:Hepatitis B Core Antigens; D005169:Factor VIII