1. Department of Dermatology and Venereology; 2nd Medical School; Charles University of Prague; Prague; Czech Republic
2. Department of Dermatology and Pathology; New Jersey Medical School; Newark; New Jersey
3. University of Rome “G. Marconi”; Rome; Italy
4. Department of Dermatology, Venerology and Pediatic Dermatology; Medical University of Lublin; Lublin; Poland
5. Department of Dermatology; General Hospital Re-Medika; Skopje; Macedonia
6. Vitiligo Research Foundation; New York; New York