@misc{indiciae0b9932d537b5,
  title = {The spinal pedicle screw: techniques and systems.},
  author = {S I Esses and D A Bednar},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2664668/},
  note = {Source identifier: 2664668}
}