@misc{indiciaee082fae79665,
  title = {Statistics for clinicians. 4. Ordinal data.},
  author = {A S Nanivadekar and A R Kannappan},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1880099/},
  note = {Source identifier: 1880099}
}