| Affiliation: | 1. Allergy Research Group, University Medical Center Freiburg, Hauptstraße 7, D-79104 Freiburg, Germany;2. Competence Center skintegral, Department of Dermatology, University Medical Center Freiburg, Hauptstraße 7, D-79104 Freiburg, Germany;3. Faculty of Biology, University of Freiburg, Schänzlestraße 1, D-79104 Freiburg, Germany;4. Dermatohistologisches Labor Dr. Laaff, Sasbacher Straße 10, D-79111 Freiburg, Germany;5. Betulin-Institute, Blumenstrasse 25, D-64297 Darmstadt, Germany;6. Birken GmbH, Streiflingsweg 11, D-75223 Niefern-Oeschelbronn, Germany;7. Carl Gustav Carus-Institut, D-75223 Niefern-Oeschelbronn, Germany |
