@misc{indiciae23ed761fa030,
  title = {[Apnea--hypopnea. A single entity or two?].},
  author = {D Köhler and B Schönhofer},
  year = {1998},
  url = {https://pubmed.ncbi.nlm.nih.gov/9715645/},
  note = {Source identifier: 9715645}
}