@misc{indiciae234c30ea2686,
  title = {Exposure to methadone programs and heroin use.},
  author = {W S Condelli and G H Dunteman},
  year = {1993},
  doi = {10.3109/00952999309002666},
  url = {https://pubmed.ncbi.nlm.nih.gov/8438832/},
  note = {Source identifier: 8438832}
}