@misc{indiciaeb406f8849a74,
  title = {The "John Snow".},
  author = {D D Howat},
  year = {1973},
  doi = {10.1111/j.1365-2044.1973.tb00492.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4577693/},
  note = {Source identifier: 4577693}
}