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Viscido A, Bagnardi V, Sturniolo GC, Annese V, Frieri G, D'Arienzo A, Papi C, Riegler G, Corrao G, Caprilli R; GISC: Italian Group for the Study of the Colon and Rectum.Viscido A, et al. Among authors: papi c.Dig Liver Dis. 2001 Nov;33(8):686-92. doi: 10.1016/s1590-8658(01)80046-3.Dig Liver Dis. 2001.PMID: 11785715