1. Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane and Faculty of Health Sciences, Brandenburg, Germany
2. Department of Dermatology, Venerology and Allergology, Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany
3. Dermoiatriki Athens, Athens, Greece
4. Clider Clínica Dermatológica Roó, Universidad Francisco de Vitoria, Madrid, Spain
5. Gynecology, Saint-Louis Hospital, Paris, France
6. Laboratoires Vichy, Levallois-Perret, France
7. School of Medicine, New York University Grossman, New York, NY, USA