A study on the A factor as a cause of haemolytic disease in premature babies.
D004899:Erythroblastosis, Fetal / Q000209:etiology*; D005333:Fetus; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D014805:Vitamin B 12 / Q000031:analogs & derivatives
C413332:factor A; D014805:Vitamin B 12
ERYTHROBLASTOSIS, FETAL/etiology and pathogenesis