@misc{indiciae63a9f952ae16,
  title = {Understanding controlled trials. Why are randomised controlled trials important?},
  author = {B Sibbald and M Roland},
  year = {1998},
  doi = {10.1136/bmj.316.7126.201},
  url = {https://pubmed.ncbi.nlm.nih.gov/9468688/},
  note = {Source identifier: 9468688}
}