title: On the causes of the changes of the second heart sound in left bundle branch block.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001022:Aortic Valve Insufficiency / Q000503:physiopathology; D001024:Aortic Valve Stenosis / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000503:physiopathology*; D006328:Cardiac Catheterization; D009202:Cardiomyopathies / Q000503:physiopathology; D003327:Coronary Disease / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006326:Heart Auscultation; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D006973:Hypertension / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000503:physiopathology; D010701:Phonocardiography; D011674:Pulse