Università degli studi di Modena e Reggio Emilia (UNIMORE) - Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli di Bologna, University of Pisa - Department of Translational Research and of New Surgical and Medical Technologies, IRCCS Istituto Ortopedico Rizzoli di Bologna, Università degli studi di Modena e Reggio Emilia (UNIMORE) - Rheumatology Unit, AOU Policlinico Vittorio Emanuele, UOD Reumatologia- Grande Ospedale Metropolitano, San Giovanni di Dio Hospital, - Rheumatology Outpatient Clinic, University of Campania, Sapienza University of Rome, Università degli Studi di Bari “Aldo Moro” (UNIBA), U.O.C. Medicina Interna "M.Valentini” P.O. Annunziata, Ospedale “Villa Salus”, Rheumatology Unit, “M. Scarlato” Hospital,, Rheumatology Unit, “M. Scarlato” Hospital,, University of Pisa, University of Pisa, U.O.S. Reumatologia, Ospedale Castrovillari, Spedali Civili di Brescia - Department of Rheumatology, Rheumatology Outpatient Clinic, ASP- Vibo Valentia–Tropea Hospital, University of L'Aquila, Unità Operativa di Immunoreumatologia-Area Medicina Clinica Policlinico Universitario Campus Bio-Medico di Roma, U.O.T. Specialistica Ambulatoriale ASP 201, Sapienza University of Rome, Ospedale “Villa Salus”, Università degli studi di Modena e Reggio Emilia (UNIMORE) - Rheumatology Unit, AOU Policlinico Vittorio Emanuele, AOU Policlinico Vittorio Emanuele, AOU Policlinico Vittorio Emanuele, University of Campania, UOD Reumatologia- Grande Ospedale Metropolitano, Rheumatology Clinic ‘Madonna dello Scoglio’ Cotronei, Rheumatology Clinic ‘Madonna dello Scoglio’ Cotronei, Rheumatology Clinic ‘Madonna dello Scoglio’ Cotronei, Rheumatology Clinic ‘Madonna dello Scoglio’ Cotronei, Rheumatology Clinic ‘Madonna dello Scoglio’ Cotronei, U.O.S. Reumatologia, Ospedale Castrovillari, University of Florence, University of Pisa, University of L'Aquila, IRCCS Istituto Ortopedico Rizzoli di Bologna, Sapienza University of Rome, UOD Reumatologia- Grande Ospedale Metropolitano, Unità Operativa di Immunoreumatologia-Area Medicina Clinica Policlinico Universitario Campus Bio-Medico di Roma, University of Pisa, Intensive and Perioperative Biotechnological Sciences,Catholic University School of Medicine, Center for Research and Innovation CRIA-MASVE - MASVE Interdepartmental Hepatology Center and University of Pisa

University of L'Aquila, University of Siena, University of Siena, Università degli Studi di Bari “Aldo Moro” (UNIBA), UOD Reumatologia- Grande Ospedale Metropolitano, Università degli Studi di Bari “Aldo Moro” (UNIBA), University of São Paulo (USP), University of São Paulo (USP), University of São Paulo (USP), King Saud University - Department of Rheumatology, King Saud University, King Saud University, - First Department of Propaedeutic and Internal Medicine, National and Kapodistrian University of Athens, National and Kapodistrian University of Athens, University of Campania Luigi Vanvitelli, University of Campania Luigi Vanvitelli, University of Campania Luigi Vanvitelli, Cairo University, Cairo University, University of Ferrara, University of Ferrara, Marmara University, Marmara University, Unità Operativa di Immunoreumatologia-Area Medicina Clinica Policlinico Universitario Campus Bio-Medico di Roma, Università Campus Bio-Medico di Roma, University of Perugia, University of Perugia, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán - Department of Immunology and Rheumatology, University of L'Aquila - Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila - Department of Biotechnological and Applied Clinical Sciences, University of Barcelona, University of Barcelona, Università Vita-Salute San Raffaele - IRCCS San Raffaele Scientific Institute, IRCCS Ospedale San Raffaele & Vita-Salute San Raffaele University - Unit of Immunology, Medical University of Lodz - Department of Internal Medicine, Medical University of Lodz, University of Turin, University of Turin, University of Siena, University of Siena, University of Siena, University of Naples Federico II, University of Florence, University of Padua, University of Pavia, Ankara Yildirim Beyazit University - Ankara City Hospital, Sapienza University of Rome, Sapienza University of Rome, Azienda Ospedaliera Universitaria 27 (AOU), "G. Martino" Messina, University of Campania Luigi Vanvitelli, University of Catania, Mansoura University, Università degli Studi di Bari “Aldo Moro” (UNIBA), - Department PROMISE, University of Milan, Università degli Studi di Bari “Aldo Moro” (UNIBA), Università degli Studi di Bari “Aldo Moro” (UNIBA), University of Antwerp, Central Hospital of Bolzano, San Camillo Forlanini Hospital, University of Bucharest, University of Brescia, University of Verona, Fatebenefratelli Hospital, San Salvatore Hospital, National and Kapodistrian University of Athens, Gazi University, Gazi University, University of Warsaw, University of Warsaw, University of Siena, University of Siena, Fondazione Policlinico Universitario A. Gemelli IRCCS, University of Siena and Azienda Ospedaliero Universitaria di Modena - Department of Neuroscience

Ain Shams University, National Research Center, Cairo University - Internal Medicine Department, Justus Liebig University Giessen, Unità Operativa di Immunoreumatologia-Area Medicina Clinica Policlinico Universitario Campus Bio-Medico di Roma, University of L'Aquila - Department of Biotechnological and Applied Clinical Sciences, Kerckhoff-Klinik GmbH, Assiut University, Ain Shams University, Fayoum University, Ain Shams University and Tanta University - Rheumatology and Rehabilitation