@misc{indiciae35dae9096260,
  title = {Letter: "As directed".},
  author = {J F Oliven},
  year = {1974},
  doi = {10.1001/jama.1974.03230230015010},
  url = {https://pubmed.ncbi.nlm.nih.gov/4405892/},
  note = {Source identifier: 4405892}
}