The "M"-IUD: an international clinical trial.
D000028:Abortion, Induced; D000022:Abortion, Spontaneous; D000328:Adult; D000367:Age Factors; D001290:Attitude; D004739:England; D005190:Family; D005260:Female; D005298:Fertility; D006723:Hong Kong; D006801:Humans; D007226:Infant Mortality; D007434:Intrauterine Devices / Q000009:adverse effects / Q000592:standards* / Q000706:statistics & numerical data; D007557:Israel; D010146:Pain / Q000209:etiology; D010298:Parity; D011247:Pregnancy; D013997:Time Factors; D014592:Uterine Hemorrhage / Q000209:etiology; D014597:Uterine Rupture / Q000209:etiology; D015022:Yugoslavia