@misc{indiciaeca148568ae43,
  title = {Dramatic decrease in the pulmonary artery systolic pressure and disappearance of the interatrial shunt with sildenafil treatment in a patient with primary pulmonary hypertension with atrial septal aneurysm and a severe right to left shunt through the patent foramen ovale.},
  author = {Osman Karakaya and Nihal Ozdemir and Cihangir Kaymaz and Irfan Barutcu},
  year = {2006},
  doi = {10.1016/j.ijcard.2005.05.076},
  url = {https://pubmed.ncbi.nlm.nih.gov/16507322/},
  note = {Source identifier: 16507322}
}