@misc{indiciae5d0dc2b2da5d,
  title = {Clinical electrophysiological effects of propranolol on normal sinus node function.},
  author = {M Vasquez and R Chuquimia and N Shantha and M Khan and O S Narula},
  year = {1979},
  doi = {10.1136/hrt.41.6.709},
  url = {https://pubmed.ncbi.nlm.nih.gov/465245/},
  note = {Source identifier: 465245}
}