@misc{indiciae61cadde56c42,
  title = {An improved method for O-demethylation of codeine.},
  author = {J A Lawson and J I DeGraw},
  year = {1977},
  doi = {10.1021/jm00211a037},
  url = {https://pubmed.ncbi.nlm.nih.gov/833817/},
  note = {Source identifier: 833817}
}