@misc{indiciae58acaa7a0550,
  title = {Electrical activity in embryonic heart cell aggregates. Pacemaker oscillations.},
  author = {T McDonald and H G Sachs},
  year = {1975},
  doi = {10.1007/bf00579946},
  url = {https://pubmed.ncbi.nlm.nih.gov/1167676/},
  note = {Source identifier: 1167676}
}