@misc{indiciaeaa97eb0077dd,
  title = {Spinal surgery.},
  author = {R Johnston},
  year = {1990},
  doi = {10.1136/jnnp.53.12.1021},
  url = {https://pubmed.ncbi.nlm.nih.gov/2292690/},
  note = {Source identifier: 2292690}
}