Affiliation: | 1. Dermatology Practice, Leibnitz, Austria;2. Medical Writer, Wien, Austria;3. Dermatology Practice, Gleisdorf, Austria;4. Dermatology Practice, Linz, Austria;5. Dermatology Practice, Vienna, Austria;6. Dermatology Practice, Bad Radkersburg, Austria;7. Dermatology Practice, Klagenfurt, Austria |