Chest compression fraction determines survival in patients with out-of-hospital ventricular fibrillation.
Christenson J, Andrusiek D, Everson-Stewart S, Kudenchuk P, Hostler D, Powell J, Callaway CW, Bishop D, Vaillancourt C, Davis D, et al. Circulation. 2009 Sep 29; 120(13):1241-7. Epub 2009 Sep 14.