1. Clinical Assistant Professor, Department of Orthodontics, College of Dentistry, University of Illinois at Chicago, Chicago, IL.
2. Faculty member, Department of Orthodontics, College of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
3. Professor of Orthodontics, Department of Orthodontics, College of Dentistry, University of Illinois at Chicago, Chicago, IL.
4. Associate Professor of Biostatistics in Orthodontics, Department of Orthodontics, College of Dentistry, University of Illinois at Chicago, Chicago, IL.
5. Associate Professor, Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL.