@misc{indiciae328861e3d9dc,
  title = {Statistics notes: variables and parameters.},
  author = {D G Altman and J M Bland},
  year = {1999},
  doi = {10.1136/bmj.318.7199.1667},
  url = {https://pubmed.ncbi.nlm.nih.gov/10373171/},
  note = {Source identifier: 10373171}
}