@misc{indiciae8eeb5230661b,
  title = {Reflections on pulmonary embolism.},
  author = {P W Willis},
  year = {1972},
  doi = {10.1378/chest.62.4.386},
  url = {https://pubmed.ncbi.nlm.nih.gov/5077994/},
  note = {Source identifier: 5077994}
}