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Carrió I, Estorch M, Serra-Grima R, Ginjaume M, Notivol R, Calabuig R, Vilardell F.Carrió I, et al. Among authors: calabuig r.Gut. 1989 Feb;30(2):152-5. doi: 10.1136/gut.30.2.152.Gut. 1989.PMID: 2703139Free PMC article.