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Cingi A, Manukyan MN, Güllüoğlu BM, Barlas A, Yeğen C, Yalin R, Yilmaz N, Aktan AO.Cingi A, et al. Among authors: yegen c.J Am Coll Surg. 2005 Dec;201(6):834-40. doi: 10.1016/j.jamcollsurg.2005.07.010. Epub 2005 Oct 13.J Am Coll Surg. 2005.PMID: 16310685Clinical Trial.