1. Centre for Research on Health and Social Care Management (CERGAS), Bocconi University, Milan, Italy
2. Evidence Synthesis and Modelling for Health Improvement (ESMI), University of Exeter Medical School, South Cloisters, St Luke's Campus, Exeter, UK
3. Department of Surgery, Liver Surgery, Transplantation and Gastroenterology, Istituto Nazionale Tumori Fondazione IRCCS, National Cancer Institute of Milan, and University of Milan, Milan, Italy
4. Department of Policy Analysis and Public Management, Bocconi University, Milan, Italy