@misc{indiciae68d381a57174,
  title = {P-wave changes in obstructive and restrictive lung diseases.},
  author = {K Ikeda and I Kubota and K Takahashi and S Yasui},
  year = {1985},
  doi = {10.1016/s0022-0736(85)80047-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4031726/},
  note = {Source identifier: 4031726}
}