[Clinical explanation on the mechanism of sterility in intrauterine contraception and its clinical application (polyethylene ring. V].
D000328:Adult; D005260:Female; D006801:Humans; D007247:Infertility, Female / Q000209:etiology; D007434:Intrauterine Devices; D008875:Middle Aged; D011095:Polyethylenes
D011095:Polyethylenes