1. First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
2. HPB Surgery and Liver Transplant Unit, AORN A. Cardarelli, 80131 Naples, Italy
3. Department of General Surgery and Organ Transplantation, University of Rome “Sapienza”, 00161 Rome, Italy
4. Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital, London W12 0NN, UK
5. Oncology Section, Surrey Cancer Research Institute, Department of Clinical and Experimental Medicine, FHMS, University of Surrey, The Leggett Building, Daphne Jackson Road, Guildford GU2 7WG, UK
6. HPB Surgical Unit, Royal Surrey NHS Foundation Trust, Guildford GU2 7XX, UK
7. Second Department of Propaedeutic Surgery, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, Greece
8. First Department of Surgery, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, Greece