title: Letter: Maternal HL-A antibodies and fetal sex.
mesh_terms: D000906:Antibodies / Q000032:analysis*; D003601:Cytotoxicity Tests, Immunologic; D004899:Erythroblastosis, Fetal / Q000276:immunology*; D005260:Female; D005333:Fetus / Q000276:immunology*; D006680:HLA Antigens / Q000032:analysis*; D006649:Histocompatibility Antigens / Q000032:analysis*; D006801:Humans; D008297:Male; D008431:Maternal-Fetal Exchange; D010298:Parity; D011247:Pregnancy; D012204:Rh-Hr Blood-Group System / Q000032:analysis; D012732:Sex Determination Analysis; D012737:Sex Factors
chemical_list: D000906:Antibodies; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D012204:Rh-Hr Blood-Group System