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Grange E, Le Teuff G, Martin-Pont B, Wolf JP, Sifer C.Grange E, et al. Among authors: sifer c.Gynecol Obstet Fertil. 2008 Jul-Aug;36(7-8):767-72. doi: 10.1016/j.gyobfe.2008.05.002. Epub 2008 Jun 30.Gynecol Obstet Fertil. 2008.PMID: 18586546French.