@misc{indiciae8017c641504c,
  title = {Causality in speech pathology.},
  author = {W H Perkins and R F Curlee},
  year = {1969},
  doi = {10.1044/jshd.3403.231},
  url = {https://pubmed.ncbi.nlm.nih.gov/5821125/},
  note = {Source identifier: 5821125}
}