title: The echocardiogram in nonrheumatic mitral insufficiency.
mesh_terms: D001281:Atrial Fibrillation / Q000150:complications; D002302:Cardiac Output; D004452:Echocardiography; D005260:Female; D006352:Heart Ventricles / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000473:pathology; D008944:Mitral Valve Insufficiency / Q000209:etiology / Q000473:pathology