@misc{indiciae121d7a9d58ca,
  title = {Clinical practice guidelines.},
  author = {R H Fletcher and S W Fletcher},
  year = {1990},
  doi = {10.7326/0003-4819-113-9-645},
  url = {https://pubmed.ncbi.nlm.nih.gov/2221643/},
  note = {Source identifier: 2221643}
}