@misc{indiciae1cafd5cac709,
  title = {Maternal oxygenation during normal labour.},
  author = {P N Reed and A D Colquhoun and C D Hanning},
  year = {1989},
  doi = {10.1093/bja/62.3.316},
  url = {https://pubmed.ncbi.nlm.nih.gov/2930673/},
  note = {Source identifier: 2930673}
}