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Savoye-Collet C, Koning E, Dacher JN.Savoye-Collet C, et al.Gastroenterol Clin North Am. 2008 Sep;37(3):553-67, viii. doi: 10.1016/j.gtc.2008.06.004.Gastroenterol Clin North Am. 2008.PMID: 18793996Review.