@misc{indiciae2af569ae246a,
  title = {Letter: A simple safety device.},
  author = {P F Dolan},
  year = {1976},
  doi = {10.1093/bja/48.5.499},
  url = {https://pubmed.ncbi.nlm.nih.gov/1276026/},
  note = {Source identifier: 1276026}
}