@misc{indiciae4486d93473d0,
  title = {Statistical methods for the meta-analysis of cluster randomization trials.},
  author = {A Donner and G Piaggio and J Villar},
  year = {2001},
  doi = {10.1177/096228020101000502},
  url = {https://pubmed.ncbi.nlm.nih.gov/11697225/},
  note = {Source identifier: 11697225}
}