@misc{indiciaec0dc52dc417c,
  title = {Pulmonary function study in old age.},
  author = {S K Das and M S Ali and M S Kataria and R Naylor},
  year = {1976},
  doi = {10.1185/03007997609109314},
  url = {https://pubmed.ncbi.nlm.nih.gov/991617/},
  note = {Source identifier: 991617}
}