title: [Clinical studies on Cu-7: copper-IUD (author's transl)].
mesh_terms: D003300:Copper / Q000097:blood; D004967:Estrogens / Q000097:blood; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007433:Intrauterine Device Expulsion / Q000009:adverse effects; D007434:Intrauterine Devices / Q000009:adverse effects; D007501:Iron / Q000097:blood; D010146:Pain / Q000209:etiology; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D014592:Uterine Hemorrhage / Q000209:etiology
chemical_list: D004967:Estrogens; D011374:Progesterone; D003300:Copper; D007501:Iron