Dr. Holt is Clinical Professor and Professor Emeritus in the Department of Otolaryngology-Head and Neck Surgery at the University of Texas Health Science Center at San Antonio, where he was the founding chair.  He holds advanced degrees in bioengineering, public health, health care policy, and bioethics.  Dr. Holt has published over 225 scientific articles in a wide range of medical journals and textbooks.  In addition to his term as Editor-in-Chief of the Southern Medical Journal, Dr. Holt is a past Editor-in-Chief of the journal Otolaryngology-Head and Neck Surgery, and past Editor-in-Chief of the journal Aviation, Space, and Environmental Medicine (official journal of the Aerospace Medical Association).  He is a past Co-Editor of The Yearbook of Otolaryngology-Head and Neck Surgery.  He has served on the Editorial Boards of the Journal of Long-Term Medical Effects of Implants, the Journal of CranioMaxillofacial Surgery, and Texas Medicine, and regularly reviews for the Journal of Trauma (now the Journal of Trauma and Acute Care Surgery), the American Journal of Transplantation, Military Medicine, Laryngoscope Investigative Otolaryngology, and the Laryngoscope.  Dr. Holt previously served as the Section Editor for Ethics and Public Policy for the AMA Archives of Facial Plastic Surgery.