@misc{indiciae625a334e1a68,
  title = {A cross-over trial with categorized response.},
  author = {A G Hawkes},
  year = {1971},
  doi = {10.1111/j.2044-8317.1971.tb00451.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5557518/},
  note = {Source identifier: 5557518}
}