@misc{indiciae6476594d5951,
  title = {[ECG changes after heart surgery using extracorporeal circulation].},
  author = {E Cizmárová and I Jakubcová and O Maliariková and I Simkovic and V Smrecanský},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4791576/},
  note = {Source identifier: 4791576}
}