Different Learning Curves for Axillary Brachial Plexus Block: Ultrasound Guidance versus Nerve Stimulation

<table>Institutional learning curves of the ultrasound group compared to the mixed group (novices for ultrasound but already experienced with the nerve stimulator). The confidence intervals for the two learning curves are mostly overlapping.</table>

Anesthesiology Research and Practice

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Figure 2

Figure 2: Different Learning Curves for Axillary Brachial Plexus Block: Ultrasound Guidance versus Nerve Stimulation 