@misc{indiciae9722ca9bf297,
  title = {Future directions for small area variations.},
  author = {J E Wennberg},
  year = {1993},
  doi = {10.1097/00005650-199305001-00012},
  url = {https://pubmed.ncbi.nlm.nih.gov/8492591/},
  note = {Source identifier: 8492591}
}