From the Department of Anesthesiology, University of Virginia, Charlottesville, Virginia.
Accepted for publication July 11, 2017.
The authors declare no conflicts of interest.
Reprints will not be available from the authors.
Address correspondence to Lauren K. Dunn, MD, PhD, Department of Anesthesiology, University of Virginia, PO Box 800710, Charlottesville, VA 22908. Address e-mail to firstname.lastname@example.org.