@misc{indiciae2dce7ead310a,
  title = {[Morphine analysis in opium].},
  author = {J A C VAN PINXTEREN and M A G SMEETS},
  year = {1950},
  url = {https://pubmed.ncbi.nlm.nih.gov/15405504/},
  note = {Source identifier: 15405504}
}