@misc{indiciae2ff09982da01,
  title = {Letter: Nitrous-oxide asphyxia.},
  author = {K R Porter},
  year = {1974},
  doi = {10.1016/s0140-6736(74)91292-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/4133670/},
  note = {Source identifier: 4133670}
}