1. Canadian Network for Research on Vasculitides Hôpital Sacré‐Coeur de Montréal, and University of Montreal Montreal Quebec Canada
2. University of Montreal Montreal Quebec Canada
3. Centre Hospitalier de l’Université de Montréal Montreal Quebec Canada
4. National Referral Center for Rare Systemic Autoimmune DiseasesUniversité de Paris, and Hôpital CochinAssistance Publique–Hôpitaux de Paris Paris France
5. Canadian Network for Research on Vasculitides Mount Sinai Hospital, and University of Toronto Toronto Ontario Canada