Fig. 1From: A prospective observational study comparing two supraglottic airway devices in out-of-hospital cardiac arrestInclusion and exclusion flowchart. The figure illustrates the numbers and reasons for patient exclusion and the number included patients. Utstein registration and resuscitation attempt definition refer to the Utstein template of uniform reporting for OHCA [13]. EMS: Emergency Medical System, ROSC: Return of Spontaneous Circulation, SAD: Supraglottic Airway Device7Back to article page