1. a Private practice, San Diego, Calif
2. b Professor, WVU School of Dentistry, Department of Restorative Dentistry, Morgantown, WVa
3. c Associate Professor, WVU School of Dentistry, Department of Orthodontics, Morgantown, WVa
4. d Professor, WVU Department of Statistics, Morgantown, Morgantown, WVa
5. e Professor and Chair, WVU School of Dentistry, Department of Orthodontics, Morgantown, WVa