From the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital; Harvard Medical School; and Center for Medical Simulation, Boston, MA.

Reprints: Jeffrey B. Cooper, PhD, Center for Medical Simulation, 100 First Ave, Suite 400, Boston, MA 01219 (e-mail: [email protected]).

The authors declare no conflict of interest.

This study is attributed to Harvard Medical School and Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, MA.