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. 2023 Feb 1;20(3):2617. doi: 10.3390/ijerph20032617

Figure 3.

Figure 3

Percutaneous electrical nerve stimulation of saphenous nerve. Note: Once the nerve was identified, the needle was inserted parallel to the plane of the probe between the muscular septum of the m. sartorius and the m. vastus medialis locating the tip of the needle in the perineurium of the saphenous nerve.