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Kamath MS, R R, Bhave P, K M, T K A, George K.Kamath MS, et al.Eur J Obstet Gynecol Reprod Biol. 2013 Feb;166(2):168-72. doi: 10.1016/j.ejogrb.2012.09.023. Epub 2012 Oct 18.Eur J Obstet Gynecol Reprod Biol. 2013.PMID: 23083636Clinical Trial.