@misc{indiciae31114b912941,
  title = {Isomeric amphetamines--a problem for urinalysis?},
  author = {F P Smith and D A Kidwell},
  year = {1991},
  doi = {10.1016/0379-0738(91)90147-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/1748353/},
  note = {Source identifier: 1748353}
}