@misc{indiciae4b5aeea081c9,
  title = {Principal component analysis of various respiratory function tests: the relationship between factor score and severity of pulmonary circulatory disorder in chronic obstructive pulmonary disease.},
  author = {K Yamamura and S Onodera and N Sasaki and H Matsumoto and H Nakano and M Makino},
  year = {1991},
  doi = {10.1016/s0954-6111(06)80208-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/1901661/},
  note = {Source identifier: 1901661}
}