1. Centre for Research on Health and Social Care Management (CERGAS); Department of Policy Analysis and Public Management; Bocconi University; Milan Italy
2. Centre for Research on Health and Social Care Management (CERGAS); Bocconi University; Milan Italy
3. Università degli Studi di Parma; Parma Italy
4. Department of Environmental Health Sciences; IRCCS Istituto di Ricerche Farmacologiche“Mario Negri,”; Milan Italy
5. Department of Maternal and Paediatric Science; University of Milan; Fondazione IRCCS Cà Grande; Ospedale Maggiore Policlinico; Milan Italy