title: The authors reply.
authors.affiliation: Pulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, and Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA; Department of Emergency Medicine, Center for Resuscitation Science, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA.
authors.forename: Mark E
authors.initials: ME
authors.lastname: Mikkelsen
authors.forename: David F
authors.initials: DF
authors.lastname: Gaieski
mesh_terms: D005260:Female; D006323:Heart Arrest / Q000628:therapy*; D006801:Humans; D007036:Hypothermia, Induced / Q000706:statistics & numerical data*; D008297:Male