@misc{indiciaed36cbe043586,
  title = {Pulmonary function tests before and after open heart surgery.},
  author = {P Ferdinande and P Lauwers and L Van Buyten and J Van de Walle},
  year = {1980},
  url = {https://pubmed.ncbi.nlm.nih.gov/7457055/},
  note = {Source identifier: 7457055}
}