@misc{indiciae964145d79cd5,
  title = {A simple reinforcement system for methadone clients in a community-based treatment program.},
  author = {G Rowan-Szal and G W Joe and L R Chatham and D D Simpson},
  doi = {10.1016/0740-5472(94)90078-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/8072049/},
  note = {Source identifier: 8072049}
}