@misc{indiciae2c541a96c017,
  title = {Revalidation: the purpose needs to be clear.},
  author = {Tim van Zwanenberg},
  year = {2004},
  doi = {10.1136/bmj.328.7441.684},
  url = {https://pubmed.ncbi.nlm.nih.gov/15031240/},
  note = {Source identifier: 15031240}
}