@misc{indiciae1a02a0764950,
  title = {Maximum likelihood methods for nonignorable missing responses and covariates in random effects models.},
  author = {Amy L Stubbendick and Joseph G Ibrahim},
  year = {2003},
  doi = {10.1111/j.0006-341x.2003.00131.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/14969495/},
  note = {Source identifier: 14969495}
}