Authors: J G Williams; S E Roberts; M F Ali; W Y Cheung; D R Cohen; G Demery; A Edwards; M Greer; M D Hellier; H A Hutchings; B Ip; M F Longo; I T Russell; H A Snooks; J C Williams Journal: Gut Date: 2007-02 Impact factor: 23.059
Authors: S J Veldhuyzen van Zanten; N Flook; N Chiba; D Armstrong; A Barkun; M Bradette; A Thomson; F Bursey; P Blackshaw; D Frail; P Sinclair Journal: CMAJ Date: 2000-06-13 Impact factor: 8.262