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Smit JW, Van Erpecum KJ, Gadella MM, Van de Heyning BJ, Van Berge-Henegouwen GP.Smit JW, et al.Eur J Gastroenterol Hepatol. 1996 Mar;8(3):197-200. doi: 10.1097/00042737-199603000-00002.Eur J Gastroenterol Hepatol. 1996.PMID: 8724016