title: New approaches to immunological contraception.
mesh_terms: D000917:Antibody Formation; D000941:Antigens; D006063:Chorionic Gonadotropin / Q000276:immunology; D003267:Contraception; D003429:Cross Reactions; D005260:Female; D006801:Humans; D007108:Immune Tolerance; D007109:Immunity; D007074:Immunoglobulin G; D007158:Immunologic Techniques; D008297:Male; D008431:Maternal-Fetal Exchange; D010063:Ovum / Q000276:immunology; D010920:Placenta / Q000276:immunology; D011247:Pregnancy; D013094:Spermatozoa / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology; D014612:Vaccines / Q000276:immunology
chemical_list: D000941:Antigens; D006063:Chorionic Gonadotropin; D007074:Immunoglobulin G; D014612:Vaccines