title: The Antigon-F, an improved intrauterine contraceptive device.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D008567:Membranes, Artificial; D010298:Parity; D011095:Polyethylenes
chemical_list: D008567:Membranes, Artificial; D011095:Polyethylenes