1. Department of Dermatology and Allergy; Allergie-Centrum-Charité/ECARF; Charité - Universitätsmedizin Berlin; Berlin Germany
2. Department of Dermatology; University Medical Center; Mainz Germany
3. Department of Dermatology and Allergy; Hannover Medical School; Hannover Germany
4. Hautarztpraxis; Dresden Germany
5. Novartis Pharma GmbH; Nuremberg Germany