1 Section of Gastroenterology and Hepatology, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, PROMISE, University of Palermo, Palermo, Italy.
2 Section of Gastroenterology and Hepatology, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, PROMISE, University of Palermo, Palermo, Italy; Department of Surgical, Oncological, and Oral Sciences, University of Palermo, Palermo, Italy.
3 Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, London, UK; Department of Biomedical Sciences, Humanitas University, Milan, Italy.
4 Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, London, UK; Department of Medical Oncology, University Campus Bio-Medico of Rome, Rome, Italy.
5 Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, London, UK; Division of Oncology, Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy. Electronic address: [email protected].