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Guven S, Muci E, Unsal MA, Yulug E, Alver A, Kadioglu Duman M, Mentese A.Guven S, et al.Fertil Steril. 2010 Mar 1;93(4):1327-32. doi: 10.1016/j.fertnstert.2008.10.053. Epub 2008 Dec 9.Fertil Steril. 2010.PMID: 19081089Free article.