@misc{indiciaeb5be53a8fdd1,
  title = {The atrial electrogram in mitral stenosis.},
  author = {G REYNOLDS},
  year = {1953},
  doi = {10.1136/hrt.15.2.250},
  url = {https://pubmed.ncbi.nlm.nih.gov/13042004/},
  note = {Source identifier: 13042004}
}