@misc{indiciaef8d84f0f172a,
  title = {Evaluation of barriers to expression.},
  author = {P Grunwell},
  doi = {10.1111/j.1365-2214.1979.tb00113.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/428039/},
  note = {Source identifier: 428039}
}