1. ANMCO Research Center; Florence Italy
2. Azienda Ospedaliero-Universitaria Careggi; Department of Geriatrics, Section of Geriatric Medicine and Cardiology; Florence Italy
3. CORE; Collaborative Outcome Research; Bologna Italy
4. CINECA Interuniversity Consortium; Casalecchio di Reno; Bologna Italy
5. Azienda Ospedaliero-Universitaria Careggi; Department of Heart and Vessel, Section Internal Medicine and Cardiology; Florence Italy
6. Accademia Nazionale di Medicina; Rome Italy