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Cycle control and side effects of a new combiphasic oral contraceptive regimenDIEBEN, T. O. M; OP TEN BERG, M. T; COELINGH BENNINK, H. J. T et al.Arzneimittel-Forschung. 1994, Vol 44, Num 7, pp 877-879, issn 0004-4172Article