title: Premature onset of menstrual bleeding during ovulatory cycles in women with an intrauterine contraceptive device.
mesh_terms: D000328:Adult; D001667:Binding, Competitive; D003300:Copper; D004958:Estradiol / Q000097:blood; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D008598:Menstruation; D010060:Ovulation; D011374:Progesterone / Q000097:blood; D011863:Radioimmunoassay; D013997:Time Factors
chemical_list: D011374:Progesterone; D004958:Estradiol; D003300:Copper