@misc{indiciaea39d6aecc74b,
  title = {Left axis deviation. An electrocardiographic mortality study.},
  author = {P W Seavey and T S Sexton},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5087502/},
  note = {Source identifier: 5087502}
}