@misc{indiciaeab975c9f609b,
  title = {Codeine impurity in ethylmorphine hydrochloride B.P.C.},
  author = {D P Vaughan and M Dennis},
  year = {1979},
  doi = {10.1111/j.2042-7158.1979.tb13432.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/32378/},
  note = {Source identifier: 32378}
}