@misc{indiciae5fd9969ead04,
  title = {Ectopic atrial rhythm with progressively increasing exit block.},
  author = {S R Mittal and S K Arora and M S Mathur},
  year = {1985},
  doi = {10.1016/0167-5273(85)90268-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/3997295/},
  note = {Source identifier: 3997295}
}