Research on Nonlinear Feature of Electrical Resistance of Acupuncture Points

<table>Volt-ampere curve of PC 6. The volt-ampere curves of acupuncture points were parabola-like rather than straight. The curves produced by increasing current intensity did not totally overlap those produced by decreasing current intensity.</table>

Evidence-Based Complementary and Alternative Medicine

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Figure 4

Figure 4: Research on Nonlinear Feature of Electrical Resistance of Acupuncture Points 