1. Department of Dermatology, Dr Sulaiman Alhabib Hospital, Riyadh, Kingdom of Saudi Arabia;
2. Department of Dermatology, Amiri Hospital, Kuwait City, Kuwait;
3. Departmentof Dermatology, Health Authority, Dubai, United Arab Emirates;
4. Department of Dermatology, Faculty of Medicine, United Arab Emirates University, Dubai, United Arab Emirates;
5. Department of Dermatology, American University of Beirut Medical Center, Beirut, Lebanon;
6. Department of Dermatology, King Abdulaziz University, Kingdom of Saudi Arabia