2Internal Medicine and Geriatric Unit, University of Palermo, Palermo, Italy, E-mail: atzenifabiola@hotmail.com
*Corresponding Author:
Sarzi-Puttini, MD, Consultant and Director, Rheumatology Unit, L. Sacco University Hospital of Milan, 20127 Milano, Italy, Tel: 44-203-051-4032 Email: ,