@misc{indiciae6a4d6d41c472,
  title = {Concealed ventricular extrasystoles.},
  author = {L SCHAMROTH and H J MARRIOTT},
  year = {1963},
  doi = {10.1161/01.cir.27.6.1043},
  url = {https://pubmed.ncbi.nlm.nih.gov/13976677/},
  note = {Source identifier: 13976677}
}