@misc{indiciae17fd46aa57a3,
  title = {Helmets for motorcyclists.},
  author = {R B Holland},
  year = {1991},
  doi = {10.5694/j.1326-5377.1991.tb93917.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1943949/},
  note = {Source identifier: 1943949}
}