title: Studies on endocrine profile of first trimester of pregnancy.
mesh_terms: D000026:Abortion, Habitual / Q000209:etiology; D000328:Adult; D006063:Chorionic Gonadotropin / Q000652:urine*; D004586:Electrophoresis; D004967:Estrogens / Q000652:urine*; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D006801:Humans; D011247:Pregnancy; D011276:Pregnanediol / Q000652:urine*; D011863:Radioimmunoassay
chemical_list: D006063:Chorionic Gonadotropin; D004967:Estrogens; D005640:Follicle Stimulating Hormone; D011276:Pregnanediol