@misc{indiciae2c4a1ef94e3e,
  title = {Lung "soot" accumulation in man.},
  author = {G P Lewis and L Coughlin},
  year = {1973},
  doi = {10.1016/0004-6981(73)90134-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4772609/},
  note = {Source identifier: 4772609}
}