@misc{indiciae8048d6de725b,
  title = {Professional courtesy.},
  author = {E T Shapiro},
  year = {1994},
  doi = {10.1056/nejm199404143301513},
  url = {https://pubmed.ncbi.nlm.nih.gov/7695669/},
  note = {Source identifier: 7695669}
}