@misc{indiciae7eb1ecd9781e,
  title = {A low-cost spacer device.},
  author = {S Gordon},
  year = {1999},
  doi = {10.1177/004947559902900222},
  url = {https://pubmed.ncbi.nlm.nih.gov/10418310/},
  note = {Source identifier: 10418310}
}