1. Department of Orthodontics and Dentofacial Orthopedics; University of Missouri-Kansas City; Kansas City MO USA
2. Department of Oral and Craniofacial Sciences; University of Missouri-Kansas City; Kansas City MO USA
3. Private Practice; Kansas City MO USA
4. Department of Orthodontics; University at Buffalo; Buffalo NY USA
5. Department of Biostatistics and Epidemiology; East Tennessee State University; Johnson City TN USA