Affiliation: | (1) Department of Radiology, La Timone University Hospital, Bd. Jean Moulin, F-13385 Marseille Cedex 5, France;(2) Department of Radiology, Rangueil University Hospital, Av. J. Poulhes, F-31054 Toulouse, France;(3) Department of Gastroenterology, La Timone University Hospital, Bd. Jean Moulin, F-13385 Marseille Cedex 5, France |