A Sitges-Serra1. 1. Department of Surgery, Hospital Universitari del Mar, Autonomous University of Barcelona, P. Maritim, 25-29, 08003 Barcelona, Spain.
Authors: D A Gorard; J B Hunt; J J Payne-James; K R Palmer; R G Rees; M L Clark; M J Farthing; J J Misiewicz; D B Silk Journal: Gut Date: 1993-09 Impact factor: 23.059