@misc{indiciaed836707e854f,
  title = {Testing for experimental effects in the pretest-posttest design.},
  author = {M J Egger and J R Miller},
  doi = {10.1097/00006199-198409000-00015},
  url = {https://pubmed.ncbi.nlm.nih.gov/6566135/},
  note = {Source identifier: 6566135}
}