@misc{indiciaec1f35aee76a1,
  title = {"Idiopathic" pleural effusion.},
  author = {E A Gaensler},
  year = {1970},
  doi = {10.1056/nejm197010082831514},
  url = {https://pubmed.ncbi.nlm.nih.gov/5456242/},
  note = {Source identifier: 5456242}
}