@misc{indiciaecaaab0b990e8,
  title = {A simple solution for the complex problem of surgical lighting.},
  author = {R A Ersek and R C Lillehei},
  year = {1972},
  doi = {10.1016/s0001-2092(07)61917-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/4480749/},
  note = {Source identifier: 4480749}
}