@misc{indiciaea7d34718275f,
  title = {Electrocardiographic changes in hyperthyroidism.},
  author = {B L Chia and J S Cheah and L K Tan},
  year = {1971},
  doi = {10.5694/j.1326-5377.1971.tb92444.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5114172/},
  note = {Source identifier: 5114172}
}