@misc{indiciaeb94ea5aecead,
  title = {Maternal mortality associated with anaesthesia.},
  author = {J S Crawford},
  year = {1972},
  doi = {10.1016/s0140-6736(72)92547-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4116613/},
  note = {Source identifier: 4116613}
}