@misc{indiciaea36705e4377a,
  title = {Are distinctive ethical principles required for cluster randomized controlled trials?},
  author = {J L Hutton},
  year = {2001},
  doi = {10.1002/1097-0258(20010215)20:3<473::aid-sim805>3.0.co;2-d},
  url = {https://pubmed.ncbi.nlm.nih.gov/11180314/},
  note = {Source identifier: 11180314}
}