@misc{indiciaed2179cbec99f,
  title = {Nitrous oxide and pregnancy.},
  author = {J F Nunn},
  year = {1987},
  doi = {10.1111/j.1365-2044.1987.tb03989.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3592161/},
  note = {Source identifier: 3592161}
}