Fig. 4From: Description of Emergency Medical Services, treatment of cardiac arrest patients and cardiac arrest registries in EuropeOut-of-hospital cardiac arrest registries. Legend: The darkest colour indicates a national registry covering all of the country, the second darkest colour indicates a national registry covering parts of the country, medium orange indicates several local registries, light with grey indicates one local registry, grey indicates no local registries and black is unknown. White colour indicates the country did not participate in the surveyBack to article page