@misc{indiciae063eb16c3612,
  title = {Analysis of repeated categorical data using generalized estimating equations.},
  author = {S R Lipsitz and K Kim and L Zhao},
  year = {1994},
  doi = {10.1002/sim.4780131106},
  url = {https://pubmed.ncbi.nlm.nih.gov/8091041/},
  note = {Source identifier: 8091041}
}