Editorial: Unresolved problems in haemophilia.
D005164:Factor IX / Q000627:therapeutic use; D005169:Factor VIII / Q000627:therapeutic use; D005260:Female; D006395:Hemarthrosis / Q000517:prevention & control; D006467:Hemophilia A / Q000188:drug therapy / Q000276:immunology; D006511:Hepatitis B Antigens; D006801:Humans; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D012940:Social Problems; D013019:South Africa
D006511:Hepatitis B Antigens; D005169:Factor VIII; D005164:Factor IX