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Concentration response relationship for nicotine evoked currents in human DRG neurons. (A). Current traces evoked with increasing concentrations of nicotine in two types of human DRG neurons: one with an apparently high affinity nicotine-evoked current (Left) and one with an apparently low affinity nicotine-evoked current (Right). (B) Pooled data from the two groups of neurons illustrated in A: neurons with high affinity current (n = 4), and low affinity current (n = 6).
