title: Early 'enzyme' Rh antibodies and second pregnancies.
mesh_terms: D000017:ABO Blood-Group System; D003298:Coombs Test; D004899:Erythroblastosis, Fetal / Q000276:immunology*; D004912:Erythrocytes / Q000187:drug effects / Q000276:immunology; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007518:Isoantibodies / Q000032:analysis*; D010206:Papain / Q000494:pharmacology*; D010298:Parity; D011247:Pregnancy; D012204:Rh-Hr Blood-Group System; D013997:Time Factors
chemical_list: D000017:ABO Blood-Group System; D007518:Isoantibodies; D012204:Rh-Hr Blood-Group System; D010206:Papain