Figure 4

Figure illustrating sequential random occlusion of the end termini of a 3D printed CT scan derived physical airway model, with occluded end termini number on the x-axis and (A) and resultant resistance at 5 Hz (B), 20(19) Hz (C) and resistance at 5 minus 20(19) Hz [R5-R20(19)] (D), measured with TremoFlo (black dots) and Jaeger (grey stars) devices.