1. Department of Dermatology and Venereology; Martin Luther University of Halle-Wittenberg; Halle (Saale); Germany
2. Institute of Physiological Chemistry; Martin Luther University of Halle-Wittenberg; Halle (Saale); Germany
3. Department of Micromechanical Systems; Ilmenau University of Technology; Ilmenau; Germany
4. Julius Bernstein Institute of Physiology; Martin Luther University of Halle-Wittenberg; Halle (Saale); Germany