@misc{indiciae5452f6087788,
  title = {Extending CONSORT to include cluster trials.},
  author = {Michael J Campbell},
  year = {2004},
  doi = {10.1136/bmj.328.7441.654},
  url = {https://pubmed.ncbi.nlm.nih.gov/15031214/},
  note = {Source identifier: 15031214}
}