1. Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
2. Department of Dermatology, Medical University of Vienna, Vienna, Austria
3. Department of Dermatology, Paracelsus Medical University, Salzburg, Austria
4. Department of Dermatology, Hietzing Hospital, Vienna, Austria
5. Department of Dermatology and Venerology, Medical University of Innsbruck, Innsbruck, Austria
6. Institute of Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
7. Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts