@misc{indiciaeff3230807a2b,
  title = {Regional differences in hospital utilization. How much can be traced to population differences?},
  author = {J R Knickman and A M Foltz},
  year = {1984},
  doi = {10.1097/00005650-198411000-00001},
  url = {https://pubmed.ncbi.nlm.nih.gov/6503399/},
  note = {Source identifier: 6503399}
}