@misc{indiciaed1c2ec3ed179,
  title = {FIVE YEARS' EXPERIENCE WITH THE VACUUM EXTRACTOR.},
  author = {J A CHALMERS},
  year = {1964},
  doi = {10.1136/bmj.1.5392.1216},
  url = {https://pubmed.ncbi.nlm.nih.gov/14120829/},
  note = {Source identifier: 14120829}
}