@misc{indiciae6dca62fec293,
  title = {ICD 9: a regression.},
  author = {J F Kurtzke},
  year = {1979},
  doi = {10.1093/oxfordjournals.aje.a112694},
  url = {https://pubmed.ncbi.nlm.nih.gov/443237/},
  note = {Source identifier: 443237}
}