Shillcutt Sasha K, Roberts Ellen K
Department of Anesthesiology, University of Nebraska Medical Center, 984455 Nebraska Medical Center, Omaha, NE 68198-4455, USA.
Anesth Analg. 2011 Sep;113(3):476-8. doi: 10.1213/ANE.0b013e31821b0cbb. Epub 2011 May 19.