@misc{indiciae5973ebe090df,
  title = {Demand pacemaker.},
  author = {M Takagi},
  year = {1967},
  doi = {10.1016/0002-8703(67)90298-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4951310/},
  note = {Source identifier: 4951310}
}