@misc{indiciae5d562fe77aa9,
  title = {Codeine analgesia is due to codeine-6-glucuronide, not morphine.},
  author = {T B Vree and R T van Dongen and P M Koopman-Kimenai},
  url = {https://pubmed.ncbi.nlm.nih.gov/11092114/},
  note = {Source identifier: 11092114}
}