@misc{indiciaec8221330ad44,
  title = {Morphine metabolites.},
  author = {L L Christrup},
  year = {1997},
  doi = {10.1111/j.1399-6576.1997.tb04625.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9061094/},
  note = {Source identifier: 9061094}
}