@misc{indiciaeb30775f3ceca,
  title = {A quantitative technical quality assay method for electrocardiograms.},
  author = {L T Sheffield and D I Roitman and S Kansal},
  year = {1978},
  doi = {10.1016/s0022-0736(78)80129-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/690553/},
  note = {Source identifier: 690553}
}