@misc{indiciae3cf9e368ce4a,
  title = {BMJ Learning.},
  author = {Edward Briffa and Kamran Abbasi},
  year = {2003},
  doi = {10.1136/bmj.326.7382.176},
  url = {https://pubmed.ncbi.nlm.nih.gov/12543818/},
  note = {Source identifier: 12543818}
}