@misc{indiciae70f3f88550c1,
  title = {Changing to cigar smoking.},
  author = {J Cowie and K P Ball and R W Sillett},
  year = {1973},
  doi = {10.1136/pgmj.49.576.707},
  url = {https://pubmed.ncbi.nlm.nih.gov/4786436/},
  note = {Source identifier: 4786436}
}