From the *Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois; †Department of Anesthesiology, Hospital for Special Surgery, New York, New York, and Weill College of Medicine at Cornell University, New York, New York; and ‡Department of Anesthesiology, Rush University Medical School, Chicago, Illinois.
Accepted for publication November 24, 2015.
The authors declare no conflicts of interest.
Reprints will not be available from the authors.
Address correspondence to Honorio T. Benzon, MD, Northwestern University Feinberg School of Medicine, 161 E. Chicago Ave., #48F, Chicago, IL 60611. Address e-mail to firstname.lastname@example.org.