Fabiola Atzeni1, Marco Corda2, Piercarlo Sarzi-Puttini3, Francesco Caso4, Maurizio Turiel5. 1. IRCCS Galeazzi Orthopedic Institute, Milan, Italy. 2. Cardiology Unit, Brotzu Hospital, Cagliari, Italy. 3. Rheumatology Unit, Sacco University Hospital, Milan, Italy. 4. Rheumatology Unit, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy. 5. Cardiology Unit, IRCCS Galeazzi Orthopedic Institute, Milan, Italy.