1. College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
2. King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
3. College of Medicine, Tabuk University, Tabuk, Saudi Arabia
4. College of Medicine, King Faisal University, Al Ahsa, Saudi Arabia
5. Division of Plastic Surgery, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia
6. Plastic Reconstructive Aesthetic Surgery.