1 Department of Anesthesiology, Division of Critical Care, The Ohio State University Wexner Medical Center, Columbus, Ohio. Electronic address: Rafal.Kopanczyk@osumc.edu.
2 Department of Anesthesiology, Division of Critical Care, The Ohio State University Wexner Medical Center, Columbus, Ohio.
3 The Ohio State University College of Medicine, Columbus, Ohio.
4 Department of Anesthesiology, Division of Critical Care, Vanderbilt University Medical Center, Nashville, Tennessee.