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Efficacy of nonoxynol 9 contraceptive sponge use in preventing heterosexual acquisition of HIV in Nairobi prostitutes
(University of Nairobi, 1992)
OBJECTIVE–To determine the efficacy of the nonoxynol 9 contraceptive sponge in preventing sexual acquisition of the human immunodeficiency virus (HIV). DESIGN–Prospective, randomized placebo-controlled trial. SETTING–Research ...