@misc{indiciaea5271046c2f4,
  title = {Letter: Methadone maintenance.},
  author = {P Cushman},
  year = {1975},
  doi = {10.1016/s0140-6736(75)91930-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/47988/},
  note = {Source identifier: 47988}
}