@misc{indiciaefe99fc1cc13b,
  title = {Electrocardiographic changes and beta-blocker toxicity.},
  author = {Heather Long and Mary Ann Howland and Robert S Hoffman},
  year = {2003},
  doi = {10.1067/mem.2003.248},
  url = {https://pubmed.ncbi.nlm.nih.gov/12852411/},
  note = {Source identifier: 12852411}
}