@misc{indiciaeac72a07faf67,
  title = {Multipurpose adaptor for electronic tonometers.},
  author = {M D Shepherd and W K McEwen},
  year = {1968},
  doi = {10.1016/0002-9394(68)93100-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/5640549/},
  note = {Source identifier: 5640549}
}