@misc{indiciaea431ae2d2f99,
  title = {Perspectives on older smokers.},
  author = {E B Fisher and R D Hill},
  year = {1990},
  doi = {10.1378/chest.97.3.517},
  url = {https://pubmed.ncbi.nlm.nih.gov/2306953/},
  note = {Source identifier: 2306953}
}