1. Madigan Army Medical Center , Tacoma, WA 98431, USA
2. Urology, Madigan Army Medical Center , Tacoma, WA 98431, USA
3. Plastic Surgery, Walter Reed National Military Medical Center , Bethesda, MD 20814, USA
4. Otolaryngology-Head and Neck Surgery, Madigan Army Medical Center , Tacoma, WA 98431, USA
5. Otolaryngology-Head and Neck Surgery, Walter Reed National Military Medical Center , Bethesda, MD 20814, USA