Authors: Guy E Boeckxstaens; Vito Annese; Stanislas Bruley des Varannes; Stanislas Chaussade; Mario Costantini; Antonello Cuttitta; J Ignasi Elizalde; Uberto Fumagalli; Marianne Gaudric; Wout O Rohof; André J Smout; Jan Tack; Aeilko H Zwinderman; Giovanni Zaninotto; Olivier R Busch Journal: N Engl J Med Date: 2011-05-12 Impact factor: 91.245