@misc{indiciae958d9ca23519,
  title = {Marijuana use by methadone maintenance patients.},
  author = {A J Saxon and D A Calsyn and P A Blaes and V M Haver and D M Greenberg},
  year = {1990},
  url = {https://pubmed.ncbi.nlm.nih.gov/1876021/},
  note = {Source identifier: 1876021}
}