1. Orthodontist, Private Practice; Kalamazoo MI USA
2. Associate Professor and Program Director, Tufts University, School of Dental Medicine, Department of Orthodontics; Boston MA USA
3. Professor and Chair, The University of Texas at Health Science Center at Houston, School of Dentistry, Department of Orthodontics; Houston TX USA
4. Associate Professor, Virginia Commonwealth University, School of Dentistry, Department of Orthodontics; Richmond VA USA
5. Professor and Director, Department of Restorative Dentistry and Prosthodontics, Houston Center for Biomaterials & Biomimetics, University of Texas School of Dentistry at Houston; Houston TX