@misc{indiciae6dca2cb69295,
  title = {A double-action button crusher.},
  author = {P B Clark},
  year = {1970},
  doi = {10.1016/s0140-6736(70)90471-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4188729/},
  note = {Source identifier: 4188729}
}