1. HPB Surgical Unit, Department of Surgery & Cancer, Imperial College, Hammersmith Hospital Campus, Du Cane Road, London, W12 0HS, UK.
2. Division of Oncology, Department of Surgery & Cancer, Imperial Centre for Translational & Experimental Medicine (ICTEM), Imperial College, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK
3. Department of Medical Oncology, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
4. HPB Surgical Unit, Department of Surgery & Cancer, Imperial College, Hammersmith Hospital Campus, Du Cane Road, London, W12 0HS, UK
5. Department of Oncology, Imperial College Healthcare NHS Trust, Charing Cross Hospital, 1st Floor, E Wing, Fulham Palace Road, London, W6 8RF, UK