1. Department of Dermatology; University of Nantes; France
2. Department of Dermatology; Federal University of São Paulo - UNIFESP; São Paulo Brazil
3. Department of Dermatology and Allergy; Charité - Universitätsmedizin Berlin; Germany
4. Department of Dermatology and Venereology; Otto-von-Guericke Universität; Magdeburg Germany