@misc{indiciae3e33945fab75,
  title = {Environmental carcinogens.},
  author = {M B Shimkin},
  year = {1968},
  doi = {10.1080/00039896.1968.10665099},
  url = {https://pubmed.ncbi.nlm.nih.gov/4297450/},
  note = {Source identifier: 4297450}
}