1. St John's Institute of Dermatology Guy's and St Thomas’ NHS Foundation Trust London U.K.
2. Department of Dermatology 12 de Octubre Hospital Institute i+12 Medical School Complutense University Madrid Spain
3. Portuguese Institute of Oncology Lisbon Portugal
4. Department of Dermatology Saint‐Louis Hospital Paris 7 University Paris France
5. Department of Dermatology Johannes Wesling Medical Center Minden Germany
6. Department of Dermatology University Hospital of Schleswig‐Holstein Kiel Germany
7. Department of Dermatology Hospital de Santo António – Centro Hospitalar do Porto Porto Portugal
8. Department of Medical Sciences Dermatologic Clinic University of Turin Turin Italy
9. Department of Dermatology University Hospital of Bordeaux Bordeaux France
10. Manchester Academic Health Science Centre Christie Hospital Manchester U.K.
11. School of Medicine Department of Dermatology University of Pittsburgh Pittsburgh PA U.S.A.
12. Department of Dermatology University General Hospital Valencia Spain
13. Janssen Research & Development Beerse Belgium
14. Janssen Research & Development Titusville NJ U.S.A.
15. Janssen Research & Development Spring House PA U.S.A.
16. Janssen Pharmaceutical K.K. Tokyo Japan
17. Institute of Hematology ‘Seràgnoli’ University of Bologna Bologna Italy