@misc{indiciae32dab25dc1d4,
  title = {Urine testing: a comparison of five current methods for detecting morphine.},
  author = {D H Catlin},
  year = {1973},
  doi = {10.1093/ajcp/60.5.719},
  url = {https://pubmed.ncbi.nlm.nih.gov/4356451/},
  note = {Source identifier: 4356451}
}