Figure 2From: Comparison of mechanical and manual bone marrow puncture needle for intraosseous access; a randomized simulation trialIntraosseous (IO) insertion time with manual and mechanical bone marrow puncture needle. (a) adult simulation, (b) child simulation, and (c) infant simulation. Manual: IO insertion with manual bone marrow puncture needle; Mechanical: IO insertion with mechanical bone marrow puncture needle. *P < 0.05 compared to without chest compression.Back to article page