@misc{indiciae5aec0a7a8c8e,
  title = {Safe-period statistics.},
  author = {J Peel},
  year = {1968},
  doi = {10.1016/s0140-6736(68)90442-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4173283/},
  note = {Source identifier: 4173283}
}