1. Psoriasis Center, Department of Dermatology, University Medical Center Schleswig-Holstein Campus Kiel, Kiel, Germany
2. Hospital Arnau de Vilanova, Valencia, Spain
3. Dermatology Research and Education Foundation, Irvine, CA, USA
4. LEO Pharma GmbH, Neu-Isenburg, Germany
5. LEO Pharma Inc., Madison, NJ, USA