Affiliation: | 1. Center for Clinical Studies, University Medical Center Regensburg, Regensburg, Germany;2. Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany;3. Department of Dermatology and Allergology, Klinikum Vest, Recklinghausen, Germany;4. Dermatology Practice, Regensburger Stra?e 36a, 93133 Burglengenfeld, Germany;5. General Medicine Practice, Kallmünzer Stra?e 2, 93133 Burglengenfeld, Germany |