@misc{indiciae3922dceffc9d,
  title = {The vacuum extractor.},
  author = {E G Simons and R H Philpott},
  year = {1973},
  doi = {10.1177/004947557300300110},
  url = {https://pubmed.ncbi.nlm.nih.gov/4693752/},
  note = {Source identifier: 4693752}
}