@misc{indiciae9b9fab6e3489,
  title = {Progressive postnatal changes in sinus node response to atropine and propranolol.},
  author = {W T Woods and F Urthaler and T N James},
  year = {1978},
  doi = {10.1152/ajpheart.1978.234.4.h412},
  url = {https://pubmed.ncbi.nlm.nih.gov/645880/},
  note = {Source identifier: 645880}
}