1. IBD Unit, Complesso Integrato Columbus, Catholic University, Via G. Moscati 31-33 00168 Rome, Italy
2. Gastroenterology Unit, Anna Meyer Children's Hospital, Department of Paediatrics, University of Firenze, Viale Peraccini 24, 50139, Firenze, Italy
3. Division of Pharmacology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
4. Chair and Division of Rheumatology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy
5. Department of Dermatology, University of Rome “Tor Vergata”, Rome, Italy
6. Ocular Immunology Unit, Ophthalmology, Unit, Arcispedale S Maria Nuova Reggio, Viale Risorgimento, 80 Reggio, Emilia, 42123 Italy
7. IBD Unit, Department of Medical and Surgical Sciences, S. Orsola-Malpighi Hospital, University of Bologna, Italy
8. Department of Medicine, Section of Dermatology and Venereology, University of Verona, Verona, Italy
9. Rheumatology Unit, Interdisciplinary Department of Medicine, Medical School, University of Bari, Italy
10. G. Pini Orthopaedic Institute, Piazza A. Ferrari 1, 20122 Milano, Italy
11. CEIS - Economic Evaluation and HTA (EEHTA), IGF Department, University of Tor Vergata, Rome, Italy
12. Rheumatology Unit, Department of Internal Medicine, Azienda Ospedaliera ASMN, Istituto di Ricovero e Cura a Carattere Scientifico, Viale Risorgimento 80, Reggio Emilia 42123, Italy
13. Department of Paediatrics, Rheumatology Unit, Anna Meyer Children's Hospital, University of Florence, Viale Pieraccini, Firenze 24 50139, Italy