1. Rheumatology Unit, Department of Medical Sciences, University of Ferrara and Azienda Ospedaliero-Universitaria S. Anna, Cona, Ferrara, Italy.
2. Rheumatology Division, Multi-specialist Medical Department, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy.
3. Rheumatology Department, IRCCS Ospedale Galeazzi - Sant’Ambrogio, Milan, Italy.
4. Rheumatology Unit, Department of Medicine, University of Padova, Italy.
5. Department of Internal Medicine and Medical Therapy, University of Pavia; and Istituti Clinici Scientifici Maugeri IRCCS Pavia, Italy.
6. School of Medicine and Surgery, University of Milano-Bicocca, Milan; and Epidemiology Unit, Italian Society for Rheumatology, Milan, Italy. carlo.scire@unimib.it