@misc{indiciae41b667e109d1,
  title = {Preliminary observations on an intervention program for heavy smokers.},
  author = {L A Shewchuk and R Dubren and D Burton and M Forman and R R Clark and A R Jaffin},
  year = {1977},
  doi = {10.3109/10826087709027227},
  url = {https://pubmed.ncbi.nlm.nih.gov/873657/},
  note = {Source identifier: 873657}
}