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Somatosensory evoked potentials (SSEPs) recorded from scalp after stimulation of the dorsal penile nerves, terminal branches of the pudendal nerve, were examined in 30 normal potent men and in 145 patients with erectile dysfunction of different etiologies. In the control group there was a significant relationship between latencies P1 and N1 and the subjects' height. In the patient group SSEPs were absent in 12 subjects, a prolonged latency was found in 28 patients.
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Tackmann et al. (2008) studied this question.
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