1. Duke University Medical Center; Durham North Carolina
2. University of Texas Southwestern Medical Center; Dallas
3. University of California; La Jolla
4. The Ohio State University Wexner Medical Center; Columbus
5. Beth Israel Deaconess Medical Center and Harvard Medical School; Boston Massachusetts
6. Baylor Scott & White Research Institute; Dallas Texas
7. UCB Pharma; Raleigh North Carolina
8. UCB Pharma; Braine-l'Alleud Belgium
9. Inselspital; University of Bern; Bern Switzerland