@misc{indiciae26c94258751f,
  title = {A QRS-phase progression indicator.},
  author = {T Y Lee},
  year = {1975},
  doi = {10.1016/0002-8703(75)90264-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/49145/},
  note = {Source identifier: 49145}
}