@misc{indiciae8c23e1fd46b7,
  title = {PREOPERATIVE EVALUATION OF PULMONARY FUNCTION.},
  author = {G J HAUPT and N C BIRKHEAD},
  year = {1964},
  url = {https://pubmed.ncbi.nlm.nih.gov/14268940/},
  note = {Source identifier: 14268940}
}