Admir Hadzić, Neda Sadeghi, and Catherine Vandepitte.
From the *Department of Anesthesiology, College of Physicians and Surgeons, Columbia University, St Luke's-Roosevelt Hospital; †Department of Anesthesiology, St Luke's-Roosevelt Hospital; and ‡New York Sch... more ool of Regional Anesthesia, St Luke's Hospital, New York, NY. less