@misc{indiciae9c41fc76fb73,
  title = {Alterations in respiratory function during natural sleep.},
  author = {R I BIRCHFIELD and H O SIEKER and A HEYMAN},
  year = {1959},
  url = {https://pubmed.ncbi.nlm.nih.gov/13800844/},
  note = {Source identifier: 13800844}
}