[1] Univ Florence, Dept Expt & Clin Med, Florence, Italy
[2] Monash Univ, Ctr Inflammatory Dis, Monash Med Ctr, Dept Med, Clayton, Vic, Australia
[3] Meyer Childrens Hosp IRCCS, Nephrol & Dialysis Unit, Florence, Italy
[4] Univ Groningen, Dept Pathol, Med Ctr, Groningen, Netherlands
[5] Santa Chiara Reg Hosp, Rheumatol, APSS Trento, Trento, Italy
[6] Univ Trento, Dept Cellular Computat & Integrat Biol CIBIO, Trento, Italy
[7] Cambridge Univ Hosp NHS Fdn Trust, Vasculitis & Lupus Clin, Cambridge, England
[8] Hosp Clin Barcelona, Dept Autoimmune Dis, Barcelona, Spain
[9] Univ Barcelona, Inst Invest Biomed August Pi & Sunyer, Barcelona, Spain
[10] Univ Alberta, Dept Med, Div Rheumatol, Edmonton, AB, Canada
[11] Maastricht Univ, Sch Mental Hlth & Neurosci, Maastricht, Netherlands
[12] Univ Lyon, Claude Bernard Univ Lyon 1, Natl Reference Ctr Rare Pulm Dis, Louis Pradel Hosp,Hosp Civils Lyon,IVPC,INRAE,ERN, Lyon, France
[13] Assoc Pazienti Con Sindrome Churg Strauss, APACS, Arosio, Italy
[14] Rheumazentrum Schleswig Holstein Mitte, Neumunster Kiel, Germany
[15] Cantonal Hosp St Gallen, Dept Rheumatol, St Gallen, Switzerland
[16] West Suffolk Hosp, ENT Dept, Bury St Edmunds, Suffolk, England
[17] Univ Modena & Reggio Emilia, Rheumatol Unit, Modena, Italy
[18] Vasculitis UK, Winster, England
[19] Sechenov First Moscow State Med Univ, Tareev Clin Internal Dis, Moscow, Russia
[20] Norfolk & Norwich Univ Hosp NHS Trust, Rheumatol Dept, Vasculitis Serv, Norwich, Norfolk, England
[21] Univ Florence, Meyer Children Hosp, Florence, Italy
[22] Univ Florence, Careggi Univ Hosp, Florence, Italy
[23] Azienda USL IRCCS Reggio Emilia, Unit Rheumatol, Reggio Emilia, Italy
[24] Univ Modena & Reggio Emilia, Dept Surg Med Dent & Morphol Sci Interest Trans, Modena, Italy
[25] Hannover Med Sch, Dept Resp Med, Hannover, Germany
[26] Hannover Med Sch, German Ctr Lung Res, Hannover, Germany
[27] Univ Milano Bicocca, Dept Med & Surg, Milan, Italy
[28] ASST Monza, Renal Unit, Monza, Italy
[29] Univ Paris Cite, Bichat Hosp, Reference Ctr Rare Resp Dis, AP HP Nord, Paris, France
[30] Univ Paris, Hop Cochin, Serv Med Interne, Paris, France
[31] Univ Freiburg, Univ Med Ctr Freiburg, Fac Med, Clin Rheumatol & Clin Immunol, Freiburg, Germany
[32] Univ Crete, Rheumatol Clin Immunol & Allergy, Sch Med, Iraklion, Greece
[33] Inst Mol Biol & Biotechnol, Lab Autoimmun Inflammat, Iraklion, Crete, Greece
[34] Univ Paris, Cochin Hosp, AP HP, Natl Referral Ctr Rare Syst Autoimmune Dis,Intern, Paris, France
[35] Univ Cambridge, Addenbrookes Hosp, Box 118, Cambridge, England
[36] Cambridge Univ Hosp NHS Fdn Trust, Cambridge, England
[37] Univ Florence, Dept Biomed Expt & Clin Sci Mario Serio, Florence, Italy