@misc{indiciaea2f53003eb95,
  title = {[Atrioventricular conduction time and physical exercise in children].},
  author = {H Hejnowicz-Gmerek and J Sczerbowska-Ociepko and H Pikulska},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/887321/},
  note = {Source identifier: 887321}
}