Affiliation: | 1. Moncrief Army Health Clinic, Columbia, SC, USA;2. Center for the Intrepid, Brooke Army Medical Center, Joint Base San Antonio - Fort Sam Houston, San Antonio, TX, USA;3. Portia Statistical Consulting, LLC, San Antonio, TX, USA;4. Extremity Trauma and Amputation Center of Excellence (EACE), Joint Base San Antonio - Fort Sam Houston, San Antonio, TX, USA |