Surgical Management of Subvalvular Aortic Stenosis in Adults: A Case Series of Two Patients. - Papatriantafyllou, Athanasios; Leivaditis, Vasileios; Koutela, Antonella; Mulita, Francesk; Papadoulas, Spyros; Koletsis, Efstratios; Baikoussis, Nikolaos G. (Reports (MDPI AG), 2026)