1. Dipartimento di Neuroscienze Riabilitazione Oftalmologia Genetica e Scienze Materno-Infantili, Università degli Studi di Genova, Genoa, Italy
2. Clinica Pediatrica e Reumatologia, IRCCS Istituto Giannina Gaslini, Genoa, Italy
3. Paediatric Rheumatology Department, Great Ormond Street Hospital, London, UK
4. Oncoematologia Pediatrica, Ospedale Vito Fazzi, Lecce, Italy
5. First Department of Pediatrics, Children’s Hospital Agia Sofia, Athens, Greece
6. Unidad de Reumatología Pediátrica, Hospital Universitario 12 de Octubre, Madrid, Spain
7. Department of Pediatrics, University of Zagreb, Zagreb, Croatia
8. Faculty of Medicine, University of Niš, Niš, Serbia
9. Pediatric Rheumatology Unit, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
10. Division of Pediatric Rheumatology, Dokuz Eylül University Hospital, Izmir, Turkey
11. Servicio de Inmunologia/Reumatologia, Hospital de Pediatría Juan P.Garrahan, Buenos Aires, Argentina
12. First Department of Pediatrics, Hippokration General Hospital, Thessaloniki, Greece
13. Clinic of Pediatrics, Clinical Center, Niš, Serbia
14. Paediatric Rheumatology, Manipal Hospital, Bangalore, India
15. Clinica Pediatrica De Marchi, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy