@misc{indiciaecd1142744ca5,
  title = {Using the general linear mixed model to analyse unbalanced repeated measures and longitudinal data.},
  author = {A Cnaan and N M Laird and P Slasor},
  year = {1997},
  doi = {10.1002/(sici)1097-0258(19971030)16:20<2349::aid-sim667>3.0.co;2-e},
  url = {https://pubmed.ncbi.nlm.nih.gov/9351170/},
  note = {Source identifier: 9351170}
}