@misc{indiciae5585fcea74f5,
  title = {Platypnea (diffuse zone I phenomenon?).},
  author = {M Altman and E D Robin},
  year = {1969},
  doi = {10.1056/nejm196912112812408},
  url = {https://pubmed.ncbi.nlm.nih.gov/5355439/},
  note = {Source identifier: 5355439}
}