@misc{indiciaeac875f578d55,
  title = {[Pulmonary ventilation function in middle-aged and elderly patients with chronic bronchitis].},
  author = {O V Korkushko and L A Ivanov},
  year = {1995},
  url = {https://pubmed.ncbi.nlm.nih.gov/7770792/},
  note = {Source identifier: 7770792}
}