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Aronsson A, Ulfgren AK, Ståbi B, Stavreus-Evers A, Gemzell-Danielsson K.Aronsson A, et al. Among authors: stabi b.Contraception. 2005 Jul;72(1):33-9. doi: 10.1016/j.contraception.2005.02.012.Contraception. 2005.PMID: 15964290Clinical Trial.