@misc{indiciaee20188d08d22,
  title = {Breathing frequency monitors.},
  author = {M S Gluck and M E Haffner},
  year = {1986},
  doi = {10.1007/bf01620555},
  url = {https://pubmed.ncbi.nlm.nih.gov/3746372/},
  note = {Source identifier: 3746372}
}