@misc{indiciae305b161fbfa7,
  title = {Cyclists need helmets.},
  author = {J P Bull},
  year = {1988},
  doi = {10.1136/bmj.296.6630.1144},
  url = {https://pubmed.ncbi.nlm.nih.gov/3132241/},
  note = {Source identifier: 3132241}
}