@misc{indiciae8aa140138f0e,
  title = {PATIENT VARIABILITY AS A FACTOR IN GROUP ACTIVITIES ON A MAXIMUM SECURITY WARD.},
  author = {R S PARKER},
  year = {1965},
  doi = {10.1007/bf01569465},
  url = {https://pubmed.ncbi.nlm.nih.gov/14276909/},
  note = {Source identifier: 14276909}
}