Authors: F L Wolters; M G Russel; J Sijbrandij; L J Schouten; S Odes; L Riis; P Munkholm; P Bodini; C O'Morain; I A Mouzas; E Tsianos; S Vermeire; E Monteiro; C Limonard; M Vatn; G Fornaciari; S Pereira; B Moum; R W Stockbrügger Journal: Gut Date: 2005-09-08 Impact factor: 23.059