title: Reply to Letter: The importance of comorbidity and illness severity scores in cardiac arrest research.
authors.affiliation: Department of Cardiology, Academic Medical Center, University of Amsterdam, University of Amsterdam, P.O. Box 22660, 1100 DD Amsterdam, The Netherlands. Electronic address: s.g.beesems@amc.nl.
authors.forename: S G
authors.initials: SG
authors.lastname: Beesems
authors.affiliation: Department of Cardiology, Academic Medical Center, University of Amsterdam, University of Amsterdam, P.O. Box 22660, 1100 DD Amsterdam, The Netherlands.
authors.forename: M T
authors.initials: MT
authors.lastname: Blom
authors.affiliation: Department of Cardiology, Academic Medical Center, University of Amsterdam, University of Amsterdam, P.O. Box 22660, 1100 DD Amsterdam, The Netherlands.
authors.forename: M
authors.initials: M
authors.lastname: Hulleman
authors.affiliation: Department of Cardiology, Academic Medical Center, University of Amsterdam, University of Amsterdam, P.O. Box 22660, 1100 DD Amsterdam, The Netherlands.
authors.forename: R W
authors.initials: RW
authors.lastname: Koster
mesh_terms: D016887:Cardiopulmonary Resuscitation / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D009422:Nervous System Diseases / Q000453:epidemiology*; D058687:Out-of-Hospital Cardiac Arrest / Q000453:epidemiology*; D012042:Registries