1. Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, Canada;
2. Department of Educational and Counselling Psychology, McGill University, Montréal, Canada;
3. Department of Psychology, Université du Québec à Montréal, Montréal, Canada;
4. Scleroderma Society of Ontario, Hamilton, Canada;
5. Department of Medicine, McGill University, Montréal, Canada;
6. Department of Psychiatry, McGill University, Montréal, Canada;
7. Behavioural Science Institute, Clinical Psychology, Radboud University, Nijmegen, the Netherlands;
8. Department of Medicine, McGill University Health Center, McGill University, Montréal, Canada;
9. Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montréal, Canada;