@misc{indiciaed209457046a7,
  title = {An economical and practical operating microscope.},
  author = {A S Lim},
  year = {1981},
  doi = {10.1159/000400929},
  url = {https://pubmed.ncbi.nlm.nih.gov/7343345/},
  note = {Source identifier: 7343345}
}