1. University of Michigan; Ann Arbor
2. Cincinnati Children's Hospital; Cincinnati Ohio
3. Scleroderma Research Consultants; Litchfield Connecticut
4. University of Pennsylvania; Philadelphia
5. University of Texas Health Science Center at Houston
6. Jewish General Hospital and McGill University; Montreal Quebec Canada
7. University of California; Los Angeles
8. Georgetown University; Washington, DC
9. Boston University; Boston Massachusetts
10. Paris Descartes University and Cochin Hospital, AP-HP; Paris France
11. Royal Free and University College London Medical School; London UK
12. Toronto Western Hospital and University of Toronto; Toronto Ontario Canada
13. Azienda Ospedaliero-Universitaria Careggi (AOUC) and University of Florence; Florence Italy
14. Schulich School of Medicine, Western University, London Campus, and St. Joseph's Health Care; London Ontario Canada
15. Royal Adelaide Hospital and University of Adelaide; Adelaide South Australia Australia
16. Genentech/Roche; San Francisco California
17. Royal Brompton Hospital; London UK