1. Department of Defense Hearing Center of Excellence, Naval Medical Center San Diego, 34800 Bob Wilson Drive, San Diego, CA 92134.
2. Department of Otolaryngology–Head & Neck Surgery, Naval Hospital Camp Pendleton, 200 Mercy Circle, Oceanside, CA 92058.
3. Department of Otolaryngology-Head & Neck Surgery, Naval Hospital Camp Lejeune, 100 Brewster Boulevard, Marine Corps Base Camp Lejeune, Jacksonville, NC 28547.
4. Stanford University, 450 Serra Mall, Stanford, CA 94305.
5. Department of Otolaryngology, University of Miami Miller School of Medicine, 8932 Southwest 97th Avenue, Miami, FL 33176.