@misc{indiciae83779d660cb3,
  title = {Sick sinus syndrome.},
  author = {J T Bigger and J A Reiffel},
  year = {1979},
  doi = {10.1146/annurev.me.30.020179.000515},
  url = {https://pubmed.ncbi.nlm.nih.gov/400510/},
  note = {Source identifier: 400510}
}