[1] Karolinska Univ Hosp, Dept Upper Abdominal Dis, Stockholm, Sweden
[2] Karolinska Univ Hosp Huddinge, Karolinska Inst, Div Surg & Oncol, CLINTEC, Stockholm, Sweden
[3] Karolinska Univ Hosp Huddinge, Karolinska Inst, Div Transplantat Surg, CLINTEC, Stockholm, Sweden