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. 2012 Nov 24;22(4):833–839. doi: 10.1007/s00586-012-2592-5

Fig. 1.

Fig. 1

The method to obtain SPN-SNAP. The active electrode was placed medial to the lateral malleolus with the reference electrode placed 4 cm distally. Electrical stimulation was delivered at anterior border of the fibula with supramaximal stimulation via electrodes placed 12 cm proximal to the recording electrode