@misc{indiciaeb507d2d03127,
  title = {Parapneumonic effusions and empyema.},
  author = {J E Heffner and J Klein},
  year = {2001},
  doi = {10.1055/s-2001-18795},
  url = {https://pubmed.ncbi.nlm.nih.gov/16088703/},
  note = {Source identifier: 16088703}
}