1 Pediatric Dermatology Division, Department of Pediatric, King Abdullah Specialist Children's Hospital, National Guard Health Affairs, Riyadh, Saudi Arabia.
2 College of Medicine, Division of Dermatology, King Saud bin Abdulaziz University for Health Sciences and King Abdullah International Medical Research Center Riyadh, Riyadh, Saudi Arabia.
3 Division of Dermatology, Security Forces Hospital, Riyadh, Saudi Arabia.