@misc{indiciae47b57c427752,
  title = {Atrial septal defects.},
  author = {C A Hamilton and P R Gregware and P Ramos and R Fry},
  year = {1967},
  url = {https://pubmed.ncbi.nlm.nih.gov/6077615/},
  note = {Source identifier: 6077615}
}