@misc{indiciaef1f30febd0ad,
  title = {[About longitudinal studies in epidemiology].},
  author = {Cristina Pérez Andrés and José María Martín Moreno},
  doi = {10.1590/s1135-57272004000200001},
  url = {https://pubmed.ncbi.nlm.nih.gov/15199792/},
  note = {Source identifier: 15199792}
}