@misc{indiciaef31698b3e87f,
  title = {Correlational versus experimental studies.},
  author = {D F Klein},
  year = {1992},
  doi = {10.1016/0006-3223(92)90173-w},
  url = {https://pubmed.ncbi.nlm.nih.gov/1525289/},
  note = {Source identifier: 1525289}
}