The placebo effect and endogenous opioids.
Sher
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D004723:Endorphins / Q000037:antagonists & inhibitors / Q000266:history; D049673:History, 20th Century; D006801:Humans; D009270:Naloxone / Q000266:history* / Q000627:therapeutic use; D009292:Narcotic Antagonists / Q000266:history* / Q000627:therapeutic use; D010149:Postoperative Pain / Q000266:history* / Q000517:prevention & control; D015990:Placebo Effect; D014081:Tooth Extraction / Q000266:history
D004723:Endorphins; D009292:Narcotic Antagonists; D009270:Naloxone