@misc{indiciaef7d76d25091b,
  title = {Population-averaged and cluster-specific models for clustered ordinal response data.},
  author = {T R Ten Have and J R Landis and J Hartzel},
  year = {1996},
  doi = {10.1002/(sici)1097-0258(19961215)15:23<2573::aid-sim389>3.0.co;2-o},
  url = {https://pubmed.ncbi.nlm.nih.gov/8961464/},
  note = {Source identifier: 8961464}
}