@misc{indiciaea9e0871020d0,
  title = {An electronically modified wet spirometer.},
  author = {W H Boyd},
  year = {1965},
  doi = {10.1038/207643a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/5883647/},
  note = {Source identifier: 5883647}
}