@misc{indiciae1d1854c2fa6a,
  title = {Chance and the unexpected.},
  author = {J McMichael},
  year = {1977},
  doi = {10.1177/003693307702200220},
  url = {https://pubmed.ncbi.nlm.nih.gov/323972/},
  note = {Source identifier: 323972}
}