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Fig. 4.

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Fig. 4. (A) An operating surgical microscope. (B) Artifacts caused by operating surgical microscope. This was seen when brainstem auditory evoked potentials were being averaged. (C) Surgical microscope are always used in the same place. (D) Electrodes as close to the patient’s body or operating table as possible.
Korean J Clin Lab Sci 2021;53:122-30 https://doi.org/10.15324/kjcls.2021.53.1.122
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