1. Department of Otolaryngology–Head and Neck Surgery Brooke Army Medical Center San Antonio Texas U.S.A.
2. Clinical Investigation and Research Support 59th Medical Wing, United States Air Force San Antonio Texas U.S.A.
3. Department of Otolaryngology–Head and Neck Surgery Walter Reed National Military Medical Center Bethesda Maryland U.S.A.
4. Department of Otolaryngology–Head and Neck Surgery Landstuhl Regional Medical Center Landstuhl Germany
5. Dental and Craniofacial Trauma Research Department U.S. Army Institute of Surgical Research San Antonio Texas U.S.A.