@misc{indiciaea43084695568,
  title = {Left axis deviation: a reassessment.},
  author = {J K Perloff and N K Roberts and W R Cabeen},
  year = {1979},
  doi = {10.1161/01.cir.60.1.12},
  url = {https://pubmed.ncbi.nlm.nih.gov/156091/},
  note = {Source identifier: 156091}
}