1. Craniofacial Research Laboratory, Plastic Surgery Section; University of Michigan; Ann Arbor Michigan
2. Orthopedic Research Laboratories, Department of Orthopedic Surgery; University of Michigan; Ann Arbor Michigan
3. Department of Otolaryngology/Head and Neck Surgery; University of Michigan; Ann Arbor Michigan
4. Department of General Surgery; University of South Carolina School of Medicine; Columbia South Carolina