@misc{indiciae56f175e2ebca,
  title = {Using clinical databases in practice.},
  author = {Nick Black},
  year = {2003},
  doi = {10.1136/bmj.326.7379.2},
  url = {https://pubmed.ncbi.nlm.nih.gov/12511432/},
  note = {Source identifier: 12511432}
}