@misc{indiciae3f6bab7707e8,
  title = {Analysis of sinus cycle variation: a new method for evaluation of suspected sinus node dysfunction.},
  author = {B L Bergfeldt and K O Edhag and G Solders and H O Vallin},
  year = {1987},
  doi = {10.1016/0002-8703(87)90498-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/3604889/},
  note = {Source identifier: 3604889}
}