Randomised controlled trials for homoeopathy. Studies comparing homoeopathy and placebo are unhelpful.

@article{Weiner2002RandomisedCT,
  title={Randomised controlled trials for homoeopathy. Studies comparing homoeopathy and placebo are unhelpful.},
  author={John Weiner},
  journal={BMJ},
  year={2002},
  volume={325 7354},
  pages={41; author reply 41}
}