[1] Univ Libre Bruxelles, St Pierre Univ Hosp, European Sch Laparoscop Surg, Dept Gastrointestinal Surg, Brussels, Belgium
[2] Univ Mons, Fac Med & Pharm, Lab Anat, Mons, Belgium
[3] Laval Univ, Quebec Heart & Lung Inst, Dept Surg, Quebec City, PQ, Canada
[4] Florida Int Univ, Herbert Wertheim Coll Med, Miami, FL 33199 USA
[5] Hop Sacre Coeur, Montreal, PQ, Canada