1. Keck School of Medicine, University of Southern California, Los Angeles
2. National Psoriasis Foundation, Portland, Oregon
3. Psoriasis Treatment Center of Central New Jersey, East Windsor
4. Department of Dermatology, University of California San Francisco
5. Department of Pediatrics, University of California San Francisco
6. Department of Dermatology, Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York
7. New York Medical College at Metropolitan Hospital, New York
8. Hudson Dermatology, Somers, New York
9. Department of Dermatology, George Washington University School of Medicine, Washington, DC
10. Department of Dermatology, University of Michigan, Ann Arbor
11. Icahn School of Medicine at Mount Sinai, New York, New York
12. Northwestern University Feinberg School of Medicine, Chicago, Illinois
13. Hospital for Special Surgery, Weill Medical College of Cornell University, New York-Presbyterian Hospital, New York
14. National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland
15. Brigham and Women’s Hospital, Harvard University, Boston, Massachusetts
16. Blackrock Clinic, Dublin, Ireland
17. Arthritis and Rheumatism Associates, PC, Rockville, Maryland
18. Georgetown University School of Medicine, Washington, DC
19. Department of Dermatology, Eastern Virginia Medical School, Norfolk
20. Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, Los Angeles, California