@misc{indiciae02efbed691a9,
  title = {II. Electrocardiographic changes.},
  author = {L Mogensen and O Nyquist and E Orinius and A Sjögren},
  year = {1972},
  doi = {10.1378/chest.61.1.6},
  url = {https://pubmed.ncbi.nlm.nih.gov/5049505/},
  note = {Source identifier: 5049505}
}