1. Princess Alexandra Hospital, Brisbane, Queensland, Australia
2. School of Medicine, The University of Queensland, Brisbane, Queensland, Australia
3. Department of General Surgery, The Prince Charles Hospital, Brisbane, Queensland, Australia
4. Department of Gastroenterology, Royal Brisbane and Woman's Hospital, Brisbane, Queensland, Australia
5. Department of Radiology, The Prince Charles Hospital, Brisbane, Queensland, Australia
6. Department of HPB Surgery, Royal Brisbane and Woman's Hospital, Brisbane, Queensland, Australia