@misc{indiciae29bc81a01138,
  title = {On defining small areas.},
  author = {M A Morrisey},
  year = {1993},
  doi = {10.1097/00005650-199305001-00015},
  url = {https://pubmed.ncbi.nlm.nih.gov/8492594/},
  note = {Source identifier: 8492594}
}