@misc{indiciaefbc13a8014d4,
  title = {Operating microscope unit design. Technical note.},
  author = {B L Rish},
  year = {1973},
  doi = {10.3171/jns.1973.39.4.0545},
  url = {https://pubmed.ncbi.nlm.nih.gov/4730347/},
  note = {Source identifier: 4730347}
}