@misc{indiciae0aa765dc4cbf,
  title = {[Atrial septal defect in the elderly].},
  author = {A Merdler and M Rodeanu and T Rosenfeld and D A Halon and B S Lewis},
  year = {1985},
  url = {https://pubmed.ncbi.nlm.nih.gov/4076914/},
  note = {Source identifier: 4076914}
}