@misc{indiciaec9ea4c38b20c,
  title = {Acetylcholine-norepinephrine interactions on potassium movements in the sinus node.},
  author = {S L Lipsius and M Vassalle},
  year = {1977},
  doi = {10.1016/0014-2999(77)90055-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/19269/},
  note = {Source identifier: 19269}
}