@misc{indiciaed264ed4dbe1d,
  title = {Mediastinoscopy.},
  author = {E G Zook and W Saperstein and H Y Muhm},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5552415/},
  note = {Source identifier: 5552415}
}