@misc{indiciae94ea018fdedf,
  title = {Crash helmets reduce head injuries.},
  author = {K G Jamieson and D Kelly},
  year = {1973},
  doi = {10.5694/j.1326-5377.1973.tb129780.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4760233/},
  note = {Source identifier: 4760233}
}