@misc{indiciae99e7f47a7b54,
  title = {Case study: developing product lines using ICD-9-CM codes.},
  author = {P D Benz and J Burnham},
  year = {1985},
  url = {https://pubmed.ncbi.nlm.nih.gov/10311323/},
  note = {Source identifier: 10311323}
}