@misc{indiciae7177ba454dcf,
  title = {Comparison groups in road safety studies: an analysis.},
  author = {E Hauer},
  year = {1991},
  doi = {10.1016/0001-4575(91)90025-z},
  url = {https://pubmed.ncbi.nlm.nih.gov/1772562/},
  note = {Source identifier: 1772562}
}