@misc{indiciae7737c63f396d,
  title = {The outlook with bundle-branch block.},
  author = {M Campbell},
  year = {1969},
  doi = {10.1136/hrt.31.5.575},
  url = {https://pubmed.ncbi.nlm.nih.gov/5351290/},
  note = {Source identifier: 5351290}
}