@misc{indiciae391dc70a99b7,
  title = {Chemical analyses as validators in smoking cessation programs.},
  author = {D D Gilbert},
  year = {1993},
  doi = {10.1007/bf00844761},
  url = {https://pubmed.ncbi.nlm.nih.gov/8350343/},
  note = {Source identifier: 8350343}
}