1. Health Economics Research Centre, Nuffield Department of Population Health, University of Oxford , Oxford, OX3 7LF , UK
2. Centre for Research on Health and Social Care Management (CERGAS), Bocconi University , Milan, 20136 , Italy
3. ANMCO , Firenze, 50121 , Italy
4. Research Center , Firenze, 50121 , Italy
5. European Heart Agency, European Society of Cardiology , Brussels, 1000 , Belgium
6. William Harvey Research Institute, Queen Mary University London , London, EC1M 6BQ , UK
7. Hygeia Hospitals Group, HHG , Athens, 151 23 , Greece