@misc{indiciae63393c56f505,
  title = {Exertional arrhythmia and nitgroglycerin.},
  author = {G E Gey and L D Fisher and G E Pettet and R A Bruce},
  year = {1973},
  doi = {10.1001/jama.226.3.287},
  url = {https://pubmed.ncbi.nlm.nih.gov/4199607/},
  note = {Source identifier: 4199607}
}