title: Absence of major histocompatibility complex antigens in choriocarcinoma.
mesh_terms: D000911:Antibodies, Monoclonal; D002822:Choriocarcinoma / Q000276:immunology*; D005260:Female; D006680:HLA Antigens / Q000032:analysis*; D006801:Humans; D011247:Pregnancy; D014594:Uterine Neoplasms / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D006680:HLA Antigens