From the Department of Obstetric Anesthesiology, Brigham & Women’s Hospital, Harvard Medical School, Boston, Massachusetts.
Accepted for publication September 14, 2016.
The author declares no conflicts of interest.
Reprints will not be available from the author.
Address correspondence to William Camann, MD, Department of Anesthesia, Perioperative and Pain Medicine, Brigham & Women’s Hospital, 75 Francis St, Boston, MA 02115. Address e-mail to firstname.lastname@example.org.