Gaieski David F, Boller Manuel, Becker Lance B
Department of Emergency Medicine, Perelman School of Medicine, University of Pennsylvania, Ground Ravdin, Philadelphia, PA 19104, USA.
Crit Care Clin. 2012 Apr;28(2):211-29. doi: 10.1016/j.ccc.2011.12.002. Epub 2012 Feb 1.