title: Phonocardiographic and echocardiographic features of ruptured aortic valvular cusp.
mesh_terms: D001021:Aortic Valve; D004452:Echocardiography; D006349:Heart Valve Diseases / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D010701:Phonocardiography; D012422:Rupture, Spontaneous