1. a Clinical Assistant Professor, Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, Mich
2. b Professor, Department of Oral and Maxillofacial Surgery, Vanderbilt University Medical Center, Nashville, Tenn
3. c Professor, Division of Orthodontics, Vanderbilt University Medical Center, Nashville, Tenn
4. d Private Practice, Columbia, SC
5. e Private Practice, Brentwood, Tenn
6. f Private Practice, Goldsboro, NC