1 Dept of Internal Medicine, National Referral Center for Rare Autoimmune and Systemic Diseases (Vasculitis, Scleroderma), Hôpital Cochin, APHP, Université Paris Descartes, Paris, France [email protected].
2 Division of Rheumatology, Dept of Medicine, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada.
3 Dept of Internal Medicine, National Referral Center for Rare Autoimmune and Systemic Diseases (Vasculitis, Scleroderma), Hôpital Cochin, APHP, Université Paris Descartes, Paris, France.