From the Rowan University School of Osteopathic Medicine, Stratford, New Jersey (DG, MG), Saint Louis University, St. Louis, Missouri (PG), Temple University (AS) and Anesthesiology and Critical Care Medicine, Perelman School of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA (BG)

Correspondence to Basavana Goudra, MD, FRCA, FCARSCI, DABA, Clinical Associate Professor of Anesthesiology and Critical Care Medicine, Perelman School of Medicine, Hospital of the University of Pennsylvania, 680 Dulles, 3400 Spruce Street, Philadelphia, PA 19104, USA E-mail: [email protected]