Augoustides John G, Culp Kymberley E, Ochroch Andrew E, Milas Bonnie L
Department of Anesthesia (Cardiothoracic Section), Hospital of the University of Pennsylvania, Philadelphia, PA,
Anesth Analg. 2005 Jun;100(6):1865. doi: 10.1213/01.ANE.0000156682.59859.F3.