[Opioid placebo: allies to be protected].

@article{Piguet2011OpioidPA,
  title={[Opioid placebo: allies to be protected].},
  author={Val{\'e}rie Piguet and A F Allaz},
  journal={Revue medicale suisse},
  year={2011},
  volume={7 301},
  pages={1387-8}
}