@misc{indiciae0f732c71e8ea,
  title = {Crossover designs for clinical trials.},
  author = {J N Matthews},
  year = {1989},
  doi = {10.1002/sim.4780080514},
  url = {https://pubmed.ncbi.nlm.nih.gov/2727481/},
  note = {Source identifier: 2727481}
}