[Remote results of prolonged use of lethaline LVK 66 intrauterine contraceptive].
D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D011247:Pregnancy
Otdalennye rezul'taty dlitel'nogo primeneniia letilanovykh vnutrimatochnykh kontratseptivov LVK-66.