[1] CNR, Inst Clin Physiol, Pisa, Italy
[2] Univ Florence, Div Rheumatol, Dept Expt & Clin Med, Florence, Italy
[3] Osped Niguarda Ca Granda, Milan, Italy
[4] Univ Hosp, Salerno, Italy
[5] King Faisal Hosp, Riyadh, Saudi Arabia
[6] Cardarelli Hosp, Naples, Italy
[7] Clin Ctr Serbia, Dept Cardiol, Belgrade, Serbia
[8] Univ Belgrade, Sch Med, Belgrade, Serbia
[9] Univ Calif Los Angeles, Los Angeles, CA USA
[10] Univ Florence, Dept Expt & Clin Med, Florence, Italy