@misc{indiciaecfea3de30204,
  title = {Extracranial holded for brain retractors. Technical note.},
  author = {J Kanshepolsky},
  year = {1977},
  doi = {10.3171/jns.1977.46.6.0835},
  url = {https://pubmed.ncbi.nlm.nih.gov/859021/},
  note = {Source identifier: 859021}
}