@misc{indiciae12b9a0df2276,
  title = {Electrocardiographic classification for population comparisons. The Minnesota code.},
  author = {H Blackburn},
  year = {1969},
  doi = {10.1016/s0022-0736(69)80044-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/5780211/},
  note = {Source identifier: 5780211}
}