[Frequency of expulsion of intrauterine pessaries depending upon the type and time of introduction].
D000328:Adult; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D013997:Time Factors
Chastota ekspul'skiĭ vnutrimatochnykh pessariev v zavisimosti ot ikh vida i vremeni vvedeniia.