@misc{indiciae587058000ad1,
  title = {Surveillance into crowd control agents.},
  author = {H Wheeler and R MacLehose and E Euripidou and V Murray},
  year = {1998},
  doi = {10.1016/s0140-6736(05)61550-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/9752847/},
  note = {Source identifier: 9752847}
}