title: Differential echocardiographic patterns in mitral regurgitation.
mesh_terms: D000293:Adolescent; D000328:Adult; D004452:Echocardiography; D006349:Heart Valve Diseases / Q000503:physiopathology*; D006801:Humans; D008943:Mitral Valve / Q000502:physiology / Q000503:physiopathology*