1. Department of Dermatology; University of Alabama at Birmingham; Birmingham; AL; USA
2. Department of Pathology; University of Alabama at Birmingham; Birmingham; AL; USA
3. Department of Dermatology; “Victor Babes” University of Medicine and Pharmacy of Timisoara; Timisoara; Romania
4. Department of Dermatology; “Gr. T. Popa” University of Medicine and Pharmacy of Iasi; Iasi; Romania