@misc{indiciaed6663dcf15e3,
  title = {Electrocardiographic changes during pressure breathing.},
  author = {R J SHEPHARD},
  year = {1957},
  doi = {10.1136/hrt.19.2.243},
  url = {https://pubmed.ncbi.nlm.nih.gov/13413012/},
  note = {Source identifier: 13413012}
}