@misc{indiciae89e623b97857,
  title = {Active and passive smoking.},
  author = {N Gray},
  year = {1992},
  doi = {10.5694/j.1326-5377.1992.tb136991.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1603004/},
  note = {Source identifier: 1603004}
}