Fig. 5From: Safety and applicability of a pre-stage public access ventilator for trained laypersons: a proof of principle studyReceiver operating characteristic (ROC) curves concerning recognition of the two interventions during PCV: controlled leakage (blue line) and simulated airway occlusion (red line) with unrestricted lung compliance (a) and with reduced lung compliance (b) induced by weights (14 kg) placed on the chestBack to article page