@misc{indiciae21d3e7b9ea21,
  title = {Apparent P wave undersensing in a DDD pacemaker post exercise.},
  author = {B M van Gelder and R van Mechelen and K den Dulk and M I el Gamal},
  year = {1992},
  doi = {10.1111/j.1540-8159.1992.tb02950.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1279530/},
  note = {Source identifier: 1279530}
}