@misc{indiciaef917a9586ef3,
  title = {An efficient preparation of isocodeine from codeine.},
  author = {G W Kirby and S R Massey},
  year = {1971},
  doi = {10.1039/j39710003047},
  url = {https://pubmed.ncbi.nlm.nih.gov/4939771/},
  note = {Source identifier: 4939771}
}