[1] Skane University Hospital,Sten Tibblin Fellow, Dept. of Surgery
[2] Örebro University,Dept. of Surgery, Faculty of Medicine and Health
[3] University of Gothenburg,Dept. of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy
[4] Akademiska Hospital,Dept. of Surgery
[5] Gävle County Hospital,Dept. of Surgery
[6] Skane University Hospital,Dept. of Surgery
[7] Lund University,undefined