@misc{indiciae96641774861f,
  title = {Is there such a thing as normal sinus rate?},
  author = {D H Spodick},
  year = {1993},
  doi = {10.1136/hrt.70.5.486-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/8260287/},
  note = {Source identifier: 8260287}
}