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Endometrial histology in long-term users of the once-a-month injectable contraceptive Cyclofem
Safety of intrauterine device insertion by trained nurse-midwives in the Sudan
Reversible antispermatogenic effect of gossypol in langur monkeys (Presbytis entellus entellus)
Does the intrauterine device carry the risk of immunity to sperm?
Two-year clinical experience with Nova-T 380, a novel copper–silver IUD
Induced abortion
Communication and sexuality in a Nigerian community
European multicenter study of natural family planning (1989–1995)