1. Department of Surgery, Division of Trauma and General Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA
2. University of Pittsburgh School of Medicine, Pittsburgh, PA
3. University of Pittsburgh School of Public Health, Pittsburgh, PA
4. Department of Medical Informatics and Clinical Epidemiology, Oregon Health and Science University, Portland, OR, USA
5. Fundacion Meditech, Universidad El Bosque, Bogota, Colombia
6. Department of Critical Care Medicine and Surgery, Global Health, Division of Trauma and Surgery, University of Pittsburgh, Pittsburgh, PA