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Marciano-D'Amore DA, Paterson WG, Da Costa LR, Beck IT.Marciano-D'Amore DA, et al. Among authors: paterson wg.J Clin Gastroenterol. 1990 Dec;12(6):616-20. doi: 10.1097/00004836-199012000-00003.J Clin Gastroenterol. 1990.PMID: 1979984