1. Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
2. Department of Dermatology, Venereology and Andrology, Ain Shams University Hospitals, Cairo 11566, Egypt
3. Department of Dermatology, Ain Al Khaleej Hospital, Abu Dhabi 88206, United Arab Emirates