@misc{indiciae7d3e08e1f8e5,
  title = {[Lung function tests in emphysema].},
  author = {R Keller and H Herzog and A Ragaz and A Perruchoud},
  year = {1978},
  url = {https://pubmed.ncbi.nlm.nih.gov/625645/},
  note = {Source identifier: 625645}
}