Department of General Surgery, Hospital General Vall d'Hebron, Autonomous University of Barcelona, Barcelona, Spain, ES
J. Suárez, R. Boque, V. Zanón, J. Pradell & A. Nadal
Digestive System Research Unit, Hospital General Vall d'Hebron, Autonomous University of Barcelona, Barcelona, Spain, ES
F. Mearin & J.R. Armengol
Preventive Medicine Department, Hospital General Vall d'Hebron, Autonomous University of Barcelona, Barcelona, Spain, ES
B. Bermejo