1. Pain mechanisms: a new theory;Melzack;Science,1965
2. Temporary abolition of pain in man;Wall;Science,1967
3. Transcutaneous nerve stimulation for control of pain;Shealy;Surg Neurol,1974
4. Electrical surface stimulation for control of acute post-operative pain and prevention of ileus;Hymes;Surg Forum,1973
5. Local analgesia from percutaneous electrical stimulation;Campbell;Arch Neurol,1973