In some examples, a medical device is configured to deliver high dose electrical stimulation therapy to a patient by at least generating and delivering an electrical stimulation signal having a relatively high duty cycle, and a stimulation intensity less than a perception or paresthesia threshold intensity level for the patient. The pulses of the electrical stimulation signal may each have a relatively low amplitude, but due at least in part to a relatively high number of pulses per unit of time, a dose of the electrical stimulation may be high enough to elicit a therapeutic response from the patient.
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