[1] Univ Barcelona, Hosp Clin, Dept Autoimmune Dis, Barcelona 08036, Spain
[2] Univ Barcelona, Hosp Univ Mutua Terrassa, Dept Internal Med, Syst Autoimmune Dis Unit, Terrassa 08221, Spain
[3] Sorbonne Univ, Grp Hosp Pitie Salpetriere, Assistance Publ Hop Paris APHP,French Natl Referr, Inst E3M,Inserm UMRS,Serv Med Interne 2,Ctr Immun, F-75013 Paris, France
[4] Hop Lariboisiere, Dept Neurol, F-75010 Paris, France
[5] Ctr Hosp Reg Univ Nancy, Dept Vasc Med, Referral Ctr Rare Vasc Dis, F-54500 Vandoeuvre Les Nancy, France