fig3
![Pre-operative electrodiagnostic studies and intraoperative neurophysiologic monitoring: power and pitfalls](https://image.oaes.cc/768e5a9f-6a1a-463c-99ac-81016b118ac3/5403.fig.3.jpg)
Figure 3. Spontaneous EMG recording demonstrating two large bursts of neurotonic activity in the orbicularis oris muscle during facial nerve retraction.Amplitude is 20 µV per division. The sweep speed is 400 msec per division.
Figure 3. Spontaneous EMG recording demonstrating two large bursts of neurotonic activity in the orbicularis oris muscle during facial nerve retraction.Amplitude is 20 µV per division. The sweep speed is 400 msec per division.
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