@misc{indiciae59cbb860d610,
  title = {His bundle electrocardiography: a programmed introduction.},
  author = {A Castellanos and C Castillo and L Lemberg and B W Claxton},
  year = {1970},
  doi = {10.1378/chest.57.4.350},
  url = {https://pubmed.ncbi.nlm.nih.gov/5434717/},
  note = {Source identifier: 5434717}
}