@misc{indiciaed3224e4381e8,
  title = {Intermittent left posterior hemiblock.},
  author = {M S Halpern and G J Nau and R J Levi and M B Rosenbaum},
  year = {1971},
  doi = {10.1378/chest.60.5.499},
  url = {https://pubmed.ncbi.nlm.nih.gov/5119890/},
  note = {Source identifier: 5119890}
}