@misc{indiciaeaed2abe36e52,
  title = {Variations in bronchial movement.},
  author = {W S Holden and R Marshall},
  year = {1975},
  doi = {10.1016/s0009-9260(75)80094-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/1201639/},
  note = {Source identifier: 1201639}
}