@misc{indiciae01c331c34089,
  title = {Cardiac pacemaking.},
  author = {N P Smyth},
  year = {1969},
  doi = {10.1016/s0003-4975(10)66225-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4894911/},
  note = {Source identifier: 4894911}
}