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Effects of EA at different locations (100 Hz) on paw withdrawal latency in the pain-depression dyad model. The PWL was measured with an electronic von Frey apparatus (Bioseb, EVF3.0). Graphs represent the mean ± SEM of all 8 animals in each group. * P < 0.05 compared to normal group. # P < 0.05, compared to model group. & P < 0.05, compared to ST 36 + SP 6 group.
