@misc{indiciae8989f54f7b61,
  title = {Levorphanol: the forgotten opioid.},
  author = {Eric Prommer},
  year = {2006},
  doi = {10.1007/s00520-006-0146-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/17039381/},
  note = {Source identifier: 17039381}
}