[1] Hospital Sant Joan de Déu,Department of Paediatric Rheumatology
[2] Universitat de Barcelona,Department of Surgery and Medical
[3] Pfizer Medical,Surgical Specialties, Obstetrics, Gynaecology and Paediatrics, Medicine and Health Sciences School
[4] Instituto de Salud Musculoesquelética,Department of Rheumatology
[5] Hospital Universitari de Bellvitge,undefined
[6] L’Hospitalet de Llobregat,undefined