@misc{indiciae278e661b1234,
  title = {Confused by confounding?},
  author = {Garrett Fitzmaurice},
  year = {2003},
  doi = {10.1016/s0899-9007(02)00959-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/12591560/},
  note = {Source identifier: 12591560}
}