@misc{indiciae584b1095e568,
  title = {Physicians as gatekeepers. A complex challenge.},
  author = {M D Reagan},
  year = {1987},
  doi = {10.1056/nejm198712313172709},
  url = {https://pubmed.ncbi.nlm.nih.gov/3320750/},
  note = {Source identifier: 3320750}
}