@misc{indiciaede0ebdb886ad,
  title = {The frank lead exercise electrocardiogram. A quantitative study based on averaging technic and digital computer analysis.},
  author = {G Blomqvist and J Stenberg and I Astrand and R Messin},
  year = {1965},
  url = {https://pubmed.ncbi.nlm.nih.gov/5858053/},
  note = {Source identifier: 5858053}
}