@misc{indiciae1ac3b28e606d,
  title = {Estimating equations for association structures.},
  author = {Jun Yan and Jason Fine},
  year = {2004},
  doi = {10.1002/sim.1650},
  url = {https://pubmed.ncbi.nlm.nih.gov/15027075/},
  note = {Source identifier: 15027075}
}