@misc{indiciae369868020398,
  title = {Vital data.},
  author = {Paul B Freeman},
  year = {2006},
  doi = {10.1016/j.optm.2006.06.013},
  url = {https://pubmed.ncbi.nlm.nih.gov/16877200/},
  note = {Source identifier: 16877200}
}