Eric R Carlson1. 1. Professor and Kelly L. Krahwinkel Chair, Department of Oral and Maxillofacial Surgery; Director, Oral and Maxillofacial Surgery Residency Program; Director, Oral-Head and Neck Oncologic Surgery Fellowship Program, University of Tennessee Medical Center and University of Tennessee Cancer Institute, Knoxville, TN. Electronic address: ecarlson@mc.utmck.edu.