1. Oregon Medical Research Center; Portland OR USA
2. Probity Medical Research and K. Papp Clinical Research; Waterloo ON Canada
3. Department of Medicine (Dermatology); David Geffen School of Medicine; Los Angeles CA USA
4. Institute for Health Services Research in Dermatology and Nursing; University Medical Center Hamburg; Hamburg Germany
5. Department of Dermatology; Miller School of Medicine; University of Miami; Miami FL USA
6. Department of Dermatology; Kyoto Prefectural University of Medicine Graduate School of Medical Science; Kyoto Japan
7. Psoriasis-Center; Department of Dermatology; University Medical Center Schleswig-Holstein; Campus Kiel Germany
8. Department of Dermatology; Jichi Medical University; Shimotsuke Tochigi Japan
9. Department of Medicine; Université Laval; Hôpital Hôtel-Dieu de Québec; Quebec QC Canada
10. Centre de Recherche Dermatologique du Québec Métropolitain; Quebec QC Canada
11. Eli Lilly and Company; Indianapolis IN USA
12. Department of Dermatology; Feinberg School of Medicine; Northwestern University; Chicago IL USA