1 Department of Medicine, University of Montreal Faculty of Medicine, Division of Rheumatology and Autoimmunity Research Laboratory, Research Center of the Centre Hospitalier de l'Université de Montréal.
2 Department of Medicine, University of Montreal Faculty of Medicine, Division of Rheumatology and Autoimmunity Research Laboratory, Research Center of the Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada.
3 Inova Diagnostics, San Diego, California, USA. Dr. Senécal holds the University of Montreal Scleroderma Research Chair. mmahler@inovadx.com.