1. Department of Biomedical Informatics, Vanderbilt University Medical Center , Nashville, Tennessee, USA
2. Department of Medicine, Vanderbilt University Medical Center , Nashville, Tennessee, USA
3. Department of Pediatrics, Vanderbilt University Medical Center , Nashville, Tennessee, USA
4. Department of Anesthesiology, Vanderbilt University Medical Center , Nashville, Tennessee, USA
5. Department of Emergency Medicine, University of Texas Southwestern Medical Center , Dallas, Texas, USA
6. Clinical Informatics Center, University of Texas Southwestern Medical Center , Dallas, Texas, USA
7. School of Biomedical Informatics, University of Texas Health Science Center , Houston, Texas, USA