1. Division of Dermatology; Albert Einstein College of Medicine; 3411 Wayne Avenue, 2nd Floor Suite D 10467 Bronx NY USA
2. Department of Dermatology; Perelman School of Medicine; The University of Pennsylvania; 3400 Civic Center Blvd 19104 Philadelphia PA USA
3. Department of Dermatology and Dermatologic Surgery; Medical University of South Carolina; 135 Rutledge Avenue MSC 578 29425 Charleston SC USA