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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Flowchart of the facial nerve (FN) monitoring procedures and application of stimulus currents. The data in the red circle are the current return during verification with a 10 mA stimulus. EMG = electromyography, NMBA = neuromuscular blocking agents.