Osnabrück Study on Cardiac Arrest: A prospective trial on the introduction of a real-time feedback system in out-of-hospital resuscitation. (September 2017) - Lakomek, Felix; Brinkrolf, Peter; Lukas, Roman-Patrik; Mennewisch, Andreas; Steinsiek, Nicole; Gutendorf, Peter; Sudowe, Hendrik; Heller, Michael; Bohn, Andreas