1. Rheumatology Department, IRCCS Galeazzi-Sant’Ambrogio Hospital, Milan, Italy. vale.gio@fastwebnet.it
2. Rheumatology Department, IRCCS Galeazzi-Sant’Ambrogio Hospital, Milan, Italy.
3. Rheumatology Unit, Internal Medicine Department, ASST Settelaghi, Ospedale Di Circolo - Fondazione Macchi, Varese, Italy.
4. Dipartimento di Scienze Cliniche, Internistiche, Anestesiologiche e Cardiovascolari-Reumatologia, Sapienza University of Rome, Italy.
5. Rheumatology Unit, Department of Internal and Experimental Medicine, University of Messina, Italy.
6. Department of Clinical Neurosciences, Hermanas Hospitalarias, Villa San Benedetto Menni Hospital, Como, and Humanitas Clinical and Research Centre, Milan, Italy.
7. Rheumatology Clinic, Ospedale Carlo Urbani, Università Politecnica delle Marche, Jesi, Ancona, Italy.