| Affiliation: | 1. Postgraduate student, University of Michigan, Ann Arbor, Mich; 60th Dental Squadron, United States Air Force, Travis Air Force Base, Calif;2. Thomas M. and Doris Graber Endowed Professor of Dentistry, Department of Orthodontics and Pediatric Dentistry, School of Dentistry; professor of Cell and Developmental Biology, School of Medicine; research professor, Center for Human Growth and Development, University of Michigan, Ann Arbor; private practice, Ann Arbor, Mich;3. Assistant professor, Department of Orthodontics, University of Florence, Florence, Italy; Thomas M. Graber Visiting Scholar, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich |
