From the Anesthesiology Department, Duke University Medical Center, Durham, North Carolina.
Accepted for publication February 7, 2014.
Conflicts of Interest: See Disclosures at the end of the article.
Reprints will not be available from the authors.
Address correspondence to Tong J. Gan, MD, MHS, FRCA, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710. Address e-mail to email@example.com.