1. Department of Medicine and Surgery, Fakeeh College of Medical Sciences, Jeddah,
2. Department of Medicine and Surgery, College of Medicine, Umm AlQura University, Makkah,
3. Department of Medicine and Surgery, Ibn Sina National College, Jeddah,
4. Department of Orthopedic Surgery, Dr. Soliman Fakeeh Hospital, Jeddah, Saudi Arabia,