@misc{indiciae19cbc0a59e68,
  title = {Once bitten, twice shy.},
  author = {J Marshall and E Sharp and I G Barrison},
  doi = {10.1136/bmj.309.6970.1694a},
  url = {https://pubmed.ncbi.nlm.nih.gov/7819993/},
  note = {Source identifier: 7819993}
}