@misc{indiciaeef423df170a0,
  title = {Right bundle-branch block and left axis deviation.},
  author = {C P Petch},
  year = {1973},
  doi = {10.1016/s0140-6736(73)92230-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/4121870/},
  note = {Source identifier: 4121870}
}