@misc{indiciae2f0e2c88f028,
  title = {[Electrocardiographic changes during endotracheal intubation].},
  author = {I Iordanov and V Mikhailova and G Popov},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5148623/},
  note = {Source identifier: 5148623}
}