1Department of Surgery, McGovern Medical School at the University of Texas Health Science Center, Houston, Texas, USA
2Departments of Surgery and Pediatric Surgery, Center for Surgical Trials and Evidence-based Practice (CSTEP), McGovern Medical School at the University of Texas Health Science Center, Houston, Texas, USA
3Department of Pediatrics, Center for Clinical Research and Evidence-Based Medicine, McGovern Medical School at the University of Texas Health Science Center, Houston, Texas, USA
4Department of Surgery, Center for Translational Injury Research, McGovern Medical School at the University of Texas Health Science Center, Houston, Texas, USA