David F Gaieski1, Munish Goyal. 1. Department of Emergency Medicine, Perelman School of Medicine at the University of Pennsylvania, Center for Resuscitation Science, 34th and Spruce Streets, Ground Ravdin, Philadelphia, PA 19104, USA +1 215 349 5241 +1 215 662 3953 David.Gaieski@uphs.upenn.edu.