Reitman Elena, Devine Patricia C, Laifer-Narin Sherelle Lea, Flood Pamela
Department of Anesthesiology, Obstetrical Division, Columbia University, New York, New York 10032, USA.
Anesthesiology. 2011 Oct;115(4):852-7. doi: 10.1097/ALN.0b013e31822ea436.
