1. Department of Orthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
2. Department of Orthodontics, College of Dentistry, University of Illinois, Chicago, IL, USA
3. Graduate Program in Neuroscience, University of Illinois, Chicago, IL, USA
4. Departments of Biobehavioral Health Science, Medicine and Bioengineering, University of Illinois, Chicago, IL, USA