“Diagnosis and Surgical Treatment of a Foramen Ovale Defect in Older Patients Complicated by Pulmonary Artery Hypertension”. American Journal of Pediatric Medicine and Health Sciences (2993-2149) 4, no. 6 (June 21, 2026): 17–22. Accessed June 23, 2026. https://grnjournal.us/index.php/AJPMHS/article/view/9582.