@misc{indiciaef7496be472f3,
  title = {Modified foot-control panel for motorized operating microscope.},
  author = {D E Williamson},
  year = {1968},
  doi = {10.1016/0002-9394(68)91803-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/5659306/},
  note = {Source identifier: 5659306}
}