Institution: | (1) Paul Gerson Unna Skin Research Center, Beiersdorf AG, Unnastrasse 48, Box 519, 20245 Hamburg, Germany;(2) Clinic and Polyclinic for Dermatology and Venerology, University Hospital Hamburg-Eppendorf, Martinistrasse 52, Hamburg, Germany;(3) Department of Plant Physiology, University of Hamburg, Ohnhorststrasse 18, Hamburg, Germany |