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A mistake appeared in the sentence on lines 4-6 on the right column of page 148.The sentence “Low frequency (represented by 2 Hz) EA is most effective for suppressing the withdrawal syndromes and high frequency (100 Hz) EA is best for alleviating craving.”should be changed to “Low frequency (represented by 2 Hz)EA is most effective for alleviating craving and high frequency (100 Hz) EA is best for suppressing the withdrawal syndromes.”