@misc{indiciaea2e4fdf6d444,
  title = {Statistics review 4: sample size calculations.},
  author = {Elise Whitley and Jonathan Ball},
  year = {2002},
  doi = {10.1186/cc1521},
  url = {https://pubmed.ncbi.nlm.nih.gov/12225610/},
  note = {Source identifier: 12225610}
}