title: The Hawthorne effect: stronger than the placebo effect?
authors: Jean-Marie
authors: JM
authors: Berthelot
authors: Benoît
authors: B
authors: Le Goff
authors: Yves
authors: Y
authors: Maugars
mesh_terms: D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D015987:Effect Modifier, Epidemiologic; D006801:Humans; D010146:Pain / Q000517:prevention & control* / Q000523:psychology; D010147:Pain Measurement; D015990:Placebo Effect; D011897:Random Allocation; D015203:Reproducibility of Results; D012647:Self-Assessment; D016896:Treatment Outcome