title: Echocardiographic studies to explain opening snaps in presence of nonstenotic mitral valves.
mesh_terms: D000328:Adult; D006328:Cardiac Catheterization; D006348:Cardiac Surgical Procedures / Q000009:adverse effects; D003326:Coronary Circulation; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006326:Heart Auscultation; D006327:Heart Block / Q000175:diagnosis; D006330:Heart Defects, Congenital / Q000175:diagnosis; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis; D006345:Heart Septal Defects, Ventricular / Q000175:diagnosis; D006349:Heart Valve Diseases / Q000175:diagnosis / Q000503:physiopathology*; D006801:Humans; D006980:Hyperthyroidism / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000503:physiopathology*; D008944:Mitral Valve Insufficiency / Q000175:diagnosis; D008946:Mitral Valve Stenosis / Q000175:diagnosis; D010701:Phonocardiography; D012039:Regional Blood Flow; D013771:Tetralogy of Fallot / Q000601:surgery; D014261:Tricuspid Valve / Q000002:abnormalities