Gerd Lindner -
Dept. of Dermatology, Charité, Humboldt-University, Berlin Germany
Andreas Menrad -
Research Laboratories of Schering AG, Berlin Germany
Pia Welker -
Dept. of Dermatology, Charité, Humboldt-University, Berlin Germany
Sven Mueller-Roever -
Dept. of Dermatology, Charité, Humboldt-University, Berlin Germany
Ralf Paus -
Dept. of Dermatology, Charité, Humboldt-University, Berlin Germany