@misc{indiciaebc705ca7a8ac,
  title = {Patient classification.},
  author = {M Willams and R A McKenzie},
  year = {1993},
  doi = {10.1093/ptj/73.8.550},
  url = {https://pubmed.ncbi.nlm.nih.gov/8337244/},
  note = {Source identifier: 8337244}
}