Authors: Mark J Dobrow; Mary Anne Cooper; Karen Gayman; Jason Pennington; Joanne Matthews; Linda Rabeneck Journal: Can J Gastroenterol Date: 2007-05 Impact factor: 3.522
Authors: T R Levin; F A Farraye; R E Schoen; G Hoff; W Atkin; J H Bond; S Winawer; R W Burt; D A Johnson; L M Kirk; S C Litin; D K Rex Journal: Gut Date: 2005-06 Impact factor: 23.059