@misc{indiciaeeb034a9cfd41,
  title = {A no-smoking ward.},
  author = {J F Sangster},
  year = {1967},
  doi = {10.1016/s0140-6736(67)91963-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4167265/},
  note = {Source identifier: 4167265}
}