1. An experimental study of the placebo response under three different situations of pain;Liberman;J Psychiat,1964
2. The effect of naloxone on multi-dimensional scales of post-surgical pain in nonsedated patients;Gracely;Neurosci Abstr,1979
3. Clinical pharmacology of analgesics;Houde;Clin Pharmacol Ther,1966
4. Role of pain in placebo analgesia;Levine,1979
5. The placebo response in pain reduction;Evans,1974