@misc{indiciae3dc1162b68c7,
  title = {Automatic retractor holder: new self-retaining retractor.},
  author = {M M Warren},
  year = {1981},
  doi = {10.1016/0090-4295(81)90271-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/7222333/},
  note = {Source identifier: 7222333}
}