[1] Royal North Shore Hosp, Dept Upper Gastrointestinal Surg, Sydney, Australia
[2] Univ Sydney, Fac Med & Hlth Sci, Sydney, Australia
[3] Westmead Hosp, Dept Hepatobiliary, Pancreat Upper Gastrointestinal Surg, Sydney, Australia
[4] Westmead Hosp, Surg Innovat Unit, Sydney, NSW, Australia
[5] Christchurch Hosp, Dept Surg, Christchurch, New Zealand
[6] Univ Sydney, Kolling Inst Med Res, Sydney, Australia
[7] Royal North Shore Hosp, Dept Anat Pathol, NSW Hlth Pathol, St Leonards, Australia
[8] Australian Pancreat Ctr, Sydney, Australia
[9] Univ Notre Dame, Sch Med, Sydney, Australia
[10] Royal North Shore Hosp, Gastrointestinal Surg Unit, Sydney, Australia