1 University of Virginia School of Medicine, 1215 Lee Street, Charlottesville, VA 22901, United States.
2 University of Virginia, Department of Emergency Medicine, 1215 Lee Street, Charlottesville, VA 22901, United States.
3 University of Virginia, Department of Emergency Medicine, 1215 Lee Street, Charlottesville, VA 22901, United States. Electronic address: [email protected].