@misc{indiciae9a453118fc95,
  title = {Headlight ring retroreflectors.},
  author = {M J Allen},
  year = {1967},
  doi = {10.1097/00006324-196712000-00001},
  url = {https://pubmed.ncbi.nlm.nih.gov/5237396/},
  note = {Source identifier: 5237396}
}