Authors: Jerome D Waye; Philippus C Bornman; Nestor Chopita; Guido Costamagna; Arnaldo José Ganc; Tony Speer Journal: Gastrointest Endosc Date: 2002-10 Impact factor: 9.427
Authors: Johnathon Springer; Robert Enns; Joseph Romagnuolo; Terry Ponich; Alan N Barkun; David Armstrong Journal: Can J Gastroenterol Date: 2008-06 Impact factor: 3.522