Honorio T Benzon1, Spencer S Liu, Asokumar Buvanendran. 1. 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.