@misc{indiciae9cb17a9d176d,
  title = {Predicting participation length in group therapy.},
  author = {P J Aston},
  year = {1971},
  doi = {10.1192/bjp.119.548.57},
  url = {https://pubmed.ncbi.nlm.nih.gov/4933792/},
  note = {Source identifier: 4933792}
}