@misc{indiciae8e5f6f7cd4d2,
  title = {Superior vena caval canal obstruction.},
  author = {H C Urschel},
  year = {1966},
  doi = {10.1378/chest.49.2.155},
  url = {https://pubmed.ncbi.nlm.nih.gov/5907971/},
  note = {Source identifier: 5907971}
}