1. Pain;Curro;Dent Clin North Am,1978
2. Transcutaneous electrical nerve stimulation: an alternative approach to the management of postoperative pain;Caldwell;Anesth Analg,1982
3. Pain in the head: a neurological appraisal;Markovich,1977
4. Electrical stimulation of the nervous system for control of pain;Clark;Surg Neurol,1975
5. Retrospective analysis of acute and chronic pain control in physical therapy and rehabilitation with TENS;Graziano,1977