@misc{indiciaed36245d41d5e,
  title = {Atrial septal defect complicated by constrictive pericarditis.},
  author = {S Kumar and J Szatkowski and W Thomas},
  year = {1971},
  doi = {10.1378/chest.60.1.101},
  url = {https://pubmed.ncbi.nlm.nih.gov/5571264/},
  note = {Source identifier: 5571264}
}