Affiliation: | 1. Department of Dermatology, Veteran Affairs Medical Center, University of California San Francisco, San Francisco, California, USA;2. Department of Metabolism, Veteran Affairs Medical Center, University of California San Francisco, San Francisco, California, USA;3. Department of Dermatology, University of Osnabrück, Osnabrück, Germany;4. Department of Dermatology, Universitair Ziekenhuis Brussels, Vrij Universiteit Brussel, Brussels, Belgium;5. Department of Dermatology, National Hospital of Sri Lanka, Colombo, Sri Lanka |