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Ferraz do Lago R, Simões JA, Bahamondes L, Camargo RP, Perrotti M, Monteiro I.Ferraz do Lago R, et al. Among authors: camargo rp.Contraception. 2003 Aug;68(2):105-9. doi: 10.1016/s0010-7824(03)00109-4.Contraception. 2003.PMID: 12954522