Surgical treatment of an Echinococcus cyst of the interventricular septum complicated by septic endocarditis, complete atrioventricular block, and rupture into the Valsalva sinus - Beselia, K; Nachkepia, M; Gigilashvili, K; Keshelava, G; Janashia, G; Imnadze, G (Gen Thorac Cardiovasc Surg, 2010)