1. Oregon Medical Research Center, Portland
2. AbbVie Inc, North Chicago, Illinois
3. Department of Dermatology, Oregon Health & Science University, Portland
4. Dermatology Unit, Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
5. Humanitas Clinical and Research Center, Scientific Institute for Research, Hospitalization and Healthcare, Rozzano, Italy
6. Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht, the Netherlands
7. Department of Dermatology, Nantes Université, Centre Hospitalier Universitaire de Nantes, Nantes, France
8. Division of Dermatology, Department of Medicine, University of Calgary, Calgary, Alberta, Canada
9. Division of Community Pediatrics, Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
10. Division of Pediatric Rheumatology, Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
11. Skin Health & Wellness Centre, Calgary, Alberta, Canada
12. Dermatology Research Institute, Calgary, Alberta, Canada
13. Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
14. Medical Dermatology Associates of Chicago, Chicago, Illinois
15. Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
16. Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany