@misc{indiciaeac583f0f91f9,
  title = {Comorbidity measures for use with administrative data.},
  author = {A Elixhauser and C Steiner and D R Harris and R M Coffey},
  year = {1998},
  doi = {10.1097/00005650-199801000-00004},
  url = {https://pubmed.ncbi.nlm.nih.gov/9431328/},
  note = {Source identifier: 9431328}
}