@misc{indiciae434e122cf750,
  title = {Cycle helmets.},
  author = {J Whitelegg and R Davis},
  year = {1992},
  doi = {10.1136/bmj.305.6867.1504-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/1493419/},
  note = {Source identifier: 1493419}
}