@misc{indiciaecdd22a985f20,
  title = {An electrical digitalis tolerance test.},
  author = {A Castellanos and L Lemberg and J P Brown and B V Berkovits},
  year = {1967},
  doi = {10.1097/00000441-196711000-00018},
  url = {https://pubmed.ncbi.nlm.nih.gov/6057080/},
  note = {Source identifier: 6057080}
}