1. Klinik für Dermatologie, Venerologie und Allergologie; Charité Universitätsmedizin Berlin; Berlin Germany
2. Hautaerzte und Laserzentrum Landau; Landau in der Pfalz Germany
3. Department of Dermatology and Health Sciences; University Osnabrück; Osnabrück Germany
4. 2nd Department of Dermatology Colentina Hospital - EADV Center of Excellence on Corrective Dermatology; Carol Davila University of Medicine and Pharmacy; Bucharest Romania