1. Oregon Medical Research Center; Portland OR U.S.A.
2. Department of Dermatology; Hospital de la Santa Creu i Sant Pau; Universitat Autònoma de Barcelona; Barcelona Spain
3. University of Rome Tor Vergate; Rome Italy
4. Dermatrials Research Inc.; Hamilton ON Canada
5. Venderm Innovations in Psoriasis; Hamilton ON Canada
6. Apollo Hospitals; Chennai India
7. Department of Dermatology; University of São Paulo; São Paulo Brazil
8. Herllev and Gentofte Hospital, University of Copenhagen; Copenhagen Denmark
9. Manchester Academic Health Science Centre, Department of Dermatology; University of Manchester; Salford Royal Hospital; Manchester U.K.
10. Department of Dermatology; Erasmus University Medical Center; Rotterdam The Netherlands
11. Siaal Research Center for Family Medicine and Primary Care, Faculty of Health Sciences; Ben-Gurion University of the Negev; Beer-Sheva Israel
12. Department of Quality Measurements and Research; Chief Physician's Office; Clalit Health Services; Tel Aviv Israel
13. International Psoriasis Council; St Louis MO U.S.A.
14. Department of Dermatology; Kaiser Permanente Los Angeles Medical Center; Los Angeles CA U.S.A.