@misc{indiciae9509429657de,
  title = {Analysing incomplete longitudinal binary responses: a likelihood-based approach.},
  author = {G M Fitzmaurice and N M Laird and S R Lipsitz},
  year = {1994},
  url = {https://pubmed.ncbi.nlm.nih.gov/7981387/},
  note = {Source identifier: 7981387}
}