1. Vasculitis Clinic, Canadian Network for Research on Vasculitides (CanVasc), Division of Internal Medicine, Hôpital du Sacré-Coeur de Montréal, University of Montreal, Montreal, Quebec, Canada
2. Vasculitis Clinic, Canadian Network for Research on Vasculitides (CanVasc), Division of Rheumatology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada