1 Department of Dermatology and Allergology, Ruhr-University Bochum, Bochum, Germany (Bechara, M. Sand) Department of Physiological Science, University of California, Los Angeles, Los Angeles, Calif. (D. Sand) Department of Dermatology and Allergology, Ruhr-University Bochum, Bochum, Germany (Altmeyer, Hoffmann).