@misc{indiciae72fa35964d6a,
  title = {LC-ESI-MS/MS analysis for the quantification of morphine, codeine, morphine-3-beta-D-glucuronide, morphine-6-beta-D-glucuronide, and codeine-6-beta-D-glucuronide in human urine.},
  author = {Constance M Murphy and Marilyn A Huestis},
  year = {2005},
  doi = {10.1002/jms.921},
  url = {https://pubmed.ncbi.nlm.nih.gov/16258895/},
  note = {Source identifier: 16258895}
}