1 Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, MD.
2 Cardiovascular and Thoracic Division, Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
3 Department of Anesthesiology, Division of Obstetric Anesthesiology and Cardiothoracic Anesthesiology, Wake Forest University School of Medicine, Winston Salem, NC.
4 Department of Anesthesiology, Division of Cardiothoracic Anesthesiology, Wake Forest University School of Medicine, Winston Salem, NC. Electronic address: rohesh.fernando@wfusm.edu.
5 Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN.