@misc{indiciaee438939489f8,
  title = {Letter: Prison control units.},
  author = {S Trevelyan and M Hobbs},
  year = {1975},
  doi = {10.1136/bmj.4.5987.42},
  url = {https://pubmed.ncbi.nlm.nih.gov/1174924/},
  note = {Source identifier: 1174924}
}