@misc{indiciae49afedb90a1f,
  title = {Cardiac conduction system: fetal and postnatal development.},
  author = {T N James},
  year = {1970},
  doi = {10.1016/0002-9149(70)90581-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/5460994/},
  note = {Source identifier: 5460994}
}