@misc{indiciae4ba085227813,
  title = {Area variations in selected Medicare procedures.},
  author = {J Holahan and R A Berenson and P G Kachavos},
  year = {1990},
  doi = {10.1377/hlthaff.9.4.166},
  url = {https://pubmed.ncbi.nlm.nih.gov/2289753/},
  note = {Source identifier: 2289753}
}