@misc{indiciae13dc46253479,
  title = {Explaining referral variation.},
  author = {A Hutchinson},
  year = {1993},
  doi = {10.1136/bmj.307.6917.1439},
  url = {https://pubmed.ncbi.nlm.nih.gov/8281083/},
  note = {Source identifier: 8281083}
}