@misc{indiciae537e82f60d64,
  title = {Behavior modification with chronic mental patients.},
  author = {R P Liberman},
  year = {1971},
  doi = {10.1016/0021-9681(71)90010-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/5556495/},
  note = {Source identifier: 5556495}
}