1. Resident, Department of Orthodontics, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas.
2. Associate Professor, Program Director, Tufts University School of Dental Medicine, Boston, Mass.
3. Professor and Chair, Department of Orthodontics, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas.
4. Associate Professor, Department of Orthodontics, School of Dentistry, Virginia Commonwealth University, Richmond, Va.
5. Professor, Department of Restorative Dentistry and Prosthodontics, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas.