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Catalán MA, Flores CA, González-Begne M, Zhang Y, Sepúlveda FV, Melvin JE.Catalán MA, et al. Among authors: flores ca.Gastroenterology. 2012 Feb;142(2):346-54. doi: 10.1053/j.gastro.2011.10.037. Epub 2011 Nov 10.Gastroenterology. 2012.PMID: 22079595Free PMC article.