[1] SDA Bocconi Sch Management, Ctr Res Hlth & Social Care Management CERGAS, Via Roentgen 1, I-20136 Milan, Italy
[2] Univ Exeter, Med Sch, Evidence Synth & Modelling Hlth Improvement ESMI, South Cloisters St Lukes Campus Exeter, Exeter, Devon, England
[3] Univ S Florida, Coll Publ Hlth, Tampa, FL USA
[4] Azienda Osped Univ Pisana, Via Roma 67, Pisa, Italy
[5] Natl Canc Inst, Ist Nazl Tumori Fdn IRCCS, Dept Surg Liver Surg Transplantat & Gastroenterol, Via G Venezian 1, Milan, Italy
[6] Azienda Osped Univ Bologna, Policlin S Orsola Malpighi, Bologna, Italy
[7] Bocconi Univ, Dept Social & Polit Sci, Via Roentgen 1, Milan, Italy