@misc{indiciae1d10f5e86ee9,
  title = {Cluster randomized controlled trials.},
  author = {Suezann Puffer and David J Torgerson and Judith Watson},
  year = {2005},
  doi = {10.1111/j.1365-2753.2005.00568.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/16164589/},
  note = {Source identifier: 16164589}
}