title: Letter: Inactivation of IgM antibodies.
mesh_terms: D004899:Erythroblastosis, Fetal / Q000276:immunology; D005260:Female; D006801:Humans; D007075:Immunoglobulin M / Q000378:metabolism*; D007231:Infant, Newborn; D007518:Isoantibodies; D008431:Maternal-Fetal Exchange; D011247:Pregnancy
chemical_list: D007075:Immunoglobulin M; D007518:Isoantibodies