?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=A&rft.aulast=Watkinson&rft.au=Watkinson%2C+A&rft.date=August+2017&rft.atitle=Beliefs+about+pharmaceutical+medicines+and+natural+remedies+explain+individual+variation+in+placebo+analgesia&rft.pages=908-922&rft.issn=1528-8447&rft.title=The+Journal+of+Pain&rft.volume=18&rft.issue=8&rft.genre=article