@misc{indiciae84f4ba997492,
  title = {Complete heart block complicating cardiac catheterization.},
  author = {P K Gupta and J I Haft},
  year = {1972},
  doi = {10.1378/chest.61.2.185},
  url = {https://pubmed.ncbi.nlm.nih.gov/5058900/},
  note = {Source identifier: 5058900}
}