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. Author manuscript; available in PMC: 2010 Dec 22.
Published in final edited form as: J Am Coll Cardiol. 2010 Apr 20;55(16):1713–1720. doi: 10.1016/j.jacc.2009.11.077

Figure 1. Map of Sites Contributing to the Resuscitation Outcomes Consortium Epistry Database.

Figure 1

San Diego was excluded from this analysis because of a lack of data. OPALS/B.C. = Ontario Prehospital Advanced Life Support/British Columbia; UWCTC = University of Washington Clinical Trials Center.