@misc{indiciae87f48060a130,
  title = {Internal pilot studies for estimating sample size.},
  author = {M A Birkett and S J Day},
  doi = {10.1002/sim.4780132309},
  url = {https://pubmed.ncbi.nlm.nih.gov/7701146/},
  note = {Source identifier: 7701146}
}