title: [Proceedings: Intrauterine contraception using copper 7-pessary. Experimental report].
mesh_terms: D003300:Copper; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects / Q000592:standards*; D011247:Pregnancy
chemical_list: D003300:Copper
vernacular_title: Intrauterine Kontrazeption mit dem Copper 7-Pessar. Ein Erfahrungsbericht