1. Department of Medical and Biological Sciences; Udine University; Udine Italy
2. Department of Internal Medicine; Azienda Ospedaliero Universitaria Città della Salute e della Scienza; Turin Italy
3. Azienda per i Servizi Sanitari Trento; National Health Service Trust; Trento Italy
4. Azienda Ospedaliera Universitaria Integrata Verona; National Health Service Trust; Verona Italy
5. Fondazione Poliambulanza; National Health Service Trust; Brescia Italy
6. Azienda Unità Sanitaria Locale n. 9; National Health Service Trust; Treviso Italy
7. Azienda per i Servizi Sanitari n. 2 “Isontina”; National Health Service Trust; Gorizia Italy
8. Azienda Unità Sanitaria Locale n. 6; National Health Service Trust; Vicenza Italy
9. Azienda per i Servizi Sanitari n.4 “Medio Friuli”; National Health Service Trust; Udine Italy
10. Istituto Ortopedico Rizzoli; National Health Service Trust; Bologna Italy
11. Fondazione Zancan; Padua Italy
12. Bologna University; Bologna Italy
13. Azienda Ospedaliero-Universitaria; National Health Service Trust; Padua Italy
14. Department of Public Health and Community Medicine; Verona University; Verona Italy