@misc{indiciae9bfb3dc8f709,
  title = {Atrioventricular block in hyperthyroidism.},
  author = {A Szczeklik and J Nowicka},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5571794/},
  note = {Source identifier: 5571794}
}