@misc{indiciae20e1f97a02b5,
  title = {[Analysis of ordinal repeated measures data using generalized estimating equation].},
  author = {Xiang Liu and Ju-ying Zhang},
  year = {2006},
  url = {https://pubmed.ncbi.nlm.nih.gov/17037756/},
  note = {Source identifier: 17037756}
}