@misc{indiciae853e147f0eee,
  title = {[Letter: Quadrigeminy in concealed bigeminy].},
  author = {S Kinoshita and N Kerin and I Mori and M N Levy},
  year = {1976},
  doi = {10.1161/01.cir.54.3.523},
  url = {https://pubmed.ncbi.nlm.nih.gov/947586/},
  note = {Source identifier: 947586}
}