@misc{indiciaee9fda3bce083,
  title = {Giant P waves.},
  author = {T A Simmers and J H Kirkels},
  year = {2003},
  doi = {10.1136/heart.89.10.1151},
  url = {https://pubmed.ncbi.nlm.nih.gov/12975403/},
  note = {Source identifier: 12975403}
}