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. 2021 Dec 29;14:3909–3918. doi: 10.2147/JPR.S344568

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© 2021 Vallejo et al.

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Segment of spinal cord with stimulation applied to the dorsal columns one end of a lead, with the resultant evoked compound action potential (ECAP) and associated artifact measured on the opposite end. N1 and P2 refer to the first trough and second peak, respectively, of the ECAP.