@misc{indiciaeb001ae2c920a,
  title = {[Relations between the QRS electric axis and spatial vectorcardiogram].},
  author = {F TUTINELLI and R BARLETTA and N B NARBONE},
  year = {1959},
  url = {https://pubmed.ncbi.nlm.nih.gov/13840030/},
  note = {Source identifier: 13840030}
}