@misc{indiciaeed838b1f89d2,
  title = {Quadratic inference functions for varying-coefficient models with longitudinal data.},
  author = {Annie Qu and Runze Li},
  year = {2006},
  doi = {10.1111/j.1541-0420.2005.00490.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/16918902/},
  note = {Source identifier: 16918902}
}