@misc{indiciae0907e9f6d976,
  title = {Mixed progress against lung cancer.},
  author = {M J Thun},
  year = {1998},
  doi = {10.1136/tc.7.3.223},
  url = {https://pubmed.ncbi.nlm.nih.gov/9825409/},
  note = {Source identifier: 9825409}
}