@misc{indiciaea8021b621f83,
  title = {Obstructive sleep apnoea: a progressive disorder?},
  author = {P M Calverley},
  year = {1997},
  doi = {10.1136/thx.52.10.843},
  url = {https://pubmed.ncbi.nlm.nih.gov/9404368/},
  note = {Source identifier: 9404368}
}