1. Department of Dermatology and Allergy University Hospital Ludwig Maximilian University Munich Germany
2. PhD School in Clinical and Experimental Medicine University of Modena and Reggio Emilia Modena Italy
3. Istanbul Training and Research Hospital Department of Dermatology Istanbul Turkey
4. Dr. Phillip Frost Department of Dermatology & Cutaneous Surgery Miller School of Medicine, University of Miami Miami Florida USA
5. Department of Dermatology Stanford University Stanford California USA