@misc{indiciaebd680233b53c,
  title = {Catecholamines in chronic respiratory insufficiency.},
  author = {R Keller and F W Lohmann and K P Schüren},
  year = {1971},
  doi = {10.1159/000192843},
  url = {https://pubmed.ncbi.nlm.nih.gov/4938296/},
  note = {Source identifier: 4938296}
}