Prenatal diagnosis and the prevention of birth defects.
D000017:ABO Blood-Group System; D000032:Abortion, Therapeutic; D000649:Amniocentesis; D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D012204:Rh-Hr Blood-Group System
D000017:ABO Blood-Group System; D012204:Rh-Hr Blood-Group System