@misc{indiciae6071695557c1,
  title = {Testing for omitted variables and non-linearity in regression models for longitudinal data.},
  author = {M Palta and T J Yao and R Velu},
  year = {1994},
  doi = {10.1002/sim.4780132104},
  url = {https://pubmed.ncbi.nlm.nih.gov/7846421/},
  note = {Source identifier: 7846421}
}