title: COMPARISON OF SEROLOGICAL, FROG, AND HORMONE WITHDRAWAL BLEEDING TESTS FOR EARLY PREGNANCY.
mesh_terms: D000371:Agglutination; D006063:Chorionic Gonadotropin; D004997:Ethinyl Estradiol; D005260:Female; D006062:Gonadotropins; D006801:Humans; D008863:Microspheres; D009640:Norethindrone; D010600:Pharmacology; D011233:Precipitin Tests; D011247:Pregnancy; D011258:Pregnancy Tests; D012408:Rubber
chemical_list: D006063:Chorionic Gonadotropin; D006062:Gonadotropins; D004997:Ethinyl Estradiol; D012408:Rubber; D009640:Norethindrone
keywords: AGGLUTINATION; ETHINYL ESTRADIOL; GONADOTROPINS, CHORIONIC; LATEX PARTICLES; NORETHINDRONE; PHARMACOLOGY; PRECIPITIN TESTS; PREGNANCY; PREGNANCY TESTS; RUBBER