1. General Surgery Department, Walter Reed National Military Medical Center , Bethesda, MD 20889, USA
2. Department of Surgery, Uniformed Services University , Bethesda, MD 20889, USA
3. Orthopedic Surgery Department, Walter Reed National Military Medical Center , Bethesda, MD 20889, USA
4. General Surgery Department, Womack Army Medical Center , Fort Bragg, NC 28310, USA
5. Orthopedic Surgery Department, Medical University of South Carolina , Charleston, SC 29425, USA
6. Fleet Surgical Team Four , Portsmouth, VA 23708, USA
7. General Surgery Department, Naval Medical Center Camp Lejeune , Jacksonville, NC 28542, USA
8. Eyes, Ear, Nose, and Throat Department, Naval Medicine Readiness and Training Command , Portsmouth, VA 28542, USA