@misc{indiciaef60349bc86f3,
  title = {Computerized frameless stereotactic image guidance in spinal surgery.},
  author = {Andrew A Sama and Safdar N Khan and Federico P Girardi and Frank P Cammisa},
  year = {2002},
  doi = {10.1016/s0030-5898(01)00015-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/12389283/},
  note = {Source identifier: 12389283}
}