@misc{indiciae162112fb6dd5,
  title = {Screening for sinus node dysfunction by analysis of short-term sinus cycle variations on the surface electrocardiogram.},
  author = {L Bergfeldt and M Rosenqvist and H Vallin and R Nordlander and H Aström},
  year = {1995},
  doi = {10.1016/0002-8703(95)90249-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7611105/},
  note = {Source identifier: 7611105}
}