@misc{indiciaef4895b75f834,
  title = {Modified spinal retractors.},
  author = {A L Macafee},
  year = {1981},
  doi = {10.1016/0020-1383(81)90215-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/7263040/},
  note = {Source identifier: 7263040}
}