title: Letter: Coombs-test-positive infants with hydrops.
mesh_terms: D003298:Coombs Test; D004487:Edema / Q000628:therapy*; D004899:Erythroblastosis, Fetal / Q000628:therapy*; D005078:Exchange Transfusion, Whole Blood; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy