"It takes a system to save a life" - An analysis of selected EMS areas with emphasis to the implementation of the Eisenberg's steps and the out-of-hospital cardiac arrest outcome. (September 2019) - Jakisch, Barbara; Wnent, Jan; Brenner, Sigrid; Jantzen, Tanja; Bohn, Andreas; Fischer, Matthias; Graesner, Jan-Thorsten; Seewald, Stephan