1. Department of Surgery, Hepato-Biliary and Pancreatic Unit; Instituto Fondazione Poliambulanza; Brescia Italy
2. Department of Surgery; Amsterdam UMC, University of Amsterdam, Cancer Center Amsterdam; Amsterdam Netherlands
3. Department of Medical Oncology; Instituto Fondazione Poliambulanza; Brescia Italy
4. Medical Library AMC; Amsterdam UMC, University of Amsterdam; Amsterdam Netherlands
5. Department of Medical Oncology; Amsterdam UMC, University of Amsterdam, Cancer Center Amsterdam; Amsterdam Netherlands