@misc{indiciae2fb2eb899508,
  title = {Supernormal excitation in pacemaker exit block.},
  author = {W C Shyong and C W Kong and S Y Yeung and S C Hu and W L Chan and B N Chiang},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3502860/},
  note = {Source identifier: 3502860}
}