@misc{indiciae5f6879b79893,
  title = {Smoking may impede gingival bleeding.},
  author = {Jan Bergström},
  year = {2005},
  doi = {10.1016/j.jebdp.2005.01.007},
  url = {https://pubmed.ncbi.nlm.nih.gov/17138323/},
  note = {Source identifier: 17138323}
}