1. Research Group of Dermatology, Department of Biomedicine, University Hospital Basel, Basel, Switzerland
2. Section of Dermatology, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico di Milano, Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
3. Institute of Human Genetics, University Medical Center Freiburg, Freiburg, Germany
4. Dermatology, University Hospital Basel, Basel, Switzerland