@misc{indiciaefee26554bc02,
  title = {Sinus node function; evaluation in patients with and without sinus node disease.},
  author = {W J Mandel and M M Laks and K Obayashi},
  year = {1975},
  doi = {10.1001/archinte.135.3.388},
  url = {https://pubmed.ncbi.nlm.nih.gov/1093499/},
  note = {Source identifier: 1093499}
}