@unpublished{cogprints2046,
          editor = {Richard L. Gregory},
           title = {The Placebo Effect},
          author = {Nicholas Humphrey},
       publisher = {Oxford University Press},
            year = {2002},
         journal = {Oxford Companion to the Mind. Second Edition},
        keywords = {placebo effect, healing, Darwinian medicine},
             url = {http://cogprints.org/2046/},
        abstract = {no abstract}
}

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