1. Department of Anesthesia and Perioperative Medicine Auckland City Hospital Auckland New Zealand
2. Department of Anesthesia University of Auckland Auckland New Zealand
3. Department of Anesthesia and Intensive Care Medicine Royal Free Hospital London UK
4. Department of Anesthesia Intensive Care Medicine and Pain Medicine Medical University of Vienna Vienna Austria
5. Department of Anesthesiology and Critical Care Medicine Johns Hopkins Hospital Baltimore Maryland USA
6. Clinical Service of HPB Surgery and Liver Transplantation Royal Free Hospital London UK
7. Division of Surgery & Interventional Science University College London London UK
8. Department of Anesthesiology Feinberg School of Medicine Northwestern University Chicago Illinois USA
9. Department of Surgery Johns Hopkins Hospital Baltimore Maryland USA