@misc{indiciaef1e9fc5e7de3,
  title = {An inexpensive zoom double operating microscope system.},
  author = {M J Thompson and C M Evans and R W Blamey},
  year = {1977},
  doi = {10.1016/s0072-968x(77)80036-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/892628/},
  note = {Source identifier: 892628}
}