@misc{indiciaec1e040e61ec9,
  title = {Study of lung function data by principal components analysis.},
  author = {H Cowie and M H Lloyd and C A Soutar},
  year = {1985},
  doi = {10.1136/thx.40.6.438},
  url = {https://pubmed.ncbi.nlm.nih.gov/4024003/},
  note = {Source identifier: 4024003}
}