Kai Matthes is Assistant Professor of Anesthesia, Harvard Medical School Staff Anesthesiologist at Children's Hospital Boston Department of Anesthesiology, Perioperative and Pain Medicine. Richard Urman is Assistant Professor of Anesthesia, Harvard Medical School and Director, Procedural Sedation Management & Safety, Brigham and Women's Hospital in Boston, MA. Jesse Ehrenfeld is Assistant Professor of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee.