@misc{indiciae54100155a48d,
  title = {Nocturnal oxygen therapy.},
  author = {C Spivack and L V Spivack},
  year = {1981},
  doi = {10.7326/0003-4819-94-1-135},
  url = {https://pubmed.ncbi.nlm.nih.gov/7447209/},
  note = {Source identifier: 7447209}
}