@misc{indiciaefc746407c4f1,
  title = {Abnormal sinus node function in clinical arrhythmias.},
  author = {Richard B Schuessler},
  year = {2003},
  doi = {10.1046/j.1540-8167.2003.02229.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/12693509/},
  note = {Source identifier: 12693509}
}