title: Some observations on the immune response to HL-A antigens in pregnancy.
mesh_terms: D000917:Antibody Formation; D000918:Antibody Specificity; D001792:Blood Platelets / Q000276:immunology; D003168:Complement Fixation Tests; D003601:Cytotoxicity Tests, Immunologic; D005260:Female; D006649:Histocompatibility Antigens; D006801:Humans; D007106:Immune Sera; D007518:Isoantibodies / Q000032:analysis; D008214:Lymphocytes / Q000276:immunology; D010298:Parity; D011247:Pregnancy
chemical_list: D006649:Histocompatibility Antigens; D007106:Immune Sera; D007518:Isoantibodies