@misc{indiciae6353146538e5,
  title = {Polarcardiographic sensitivity and specificity.},
  author = {P M Rautaharju},
  year = {1977},
  doi = {10.1016/s0022-0736(77)80058-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/858980/},
  note = {Source identifier: 858980}
}