@misc{indiciae22fbeee5b88c,
  title = {A generalized estimating equations approach to mixed-effects ordinal probit models.},
  author = {Timothy R Johnson and Jee-Seon Kim},
  year = {2004},
  doi = {10.1348/0007110042307177},
  url = {https://pubmed.ncbi.nlm.nih.gov/15511310/},
  note = {Source identifier: 15511310}
}