@misc{indiciaed6b8a03ed6d8,
  title = {Classifying pulmonary vascular disease.},
  author = {C A Wagenvoort},
  year = {1973},
  doi = {10.1378/chest.64.4.503},
  url = {https://pubmed.ncbi.nlm.nih.gov/4743957/},
  note = {Source identifier: 4743957}
}