Intrauterine contraception with the Saf-T-Coil 33.S. Study on 100 cases.
D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects / Q000706:statistics & numerical data*; D010298:Parity; D010969:Plastics; D011247:Pregnancy; D011647:Puerto Rico
D010969:Plastics