Fig. 1. The four reference points on International 10∼20 electrode system. (A) Nasion. (B) Inion (Occipital protuberance). (C) Left preauricular point. (D) Right preauricular point.

Korean J Clin Lab Sci 2021;53:60-7 https://doi.org/10.15324/kjcls.2021.53.1.60

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