title: PHONOCARDIOGRAPHY IN ATRIAL SEPTAL DEFECT.
mesh_terms: D006325:Heart Atria; D006343:Heart Septal Defects; D006344:Heart Septal Defects, Atrial; D006801:Humans; D010701:Phonocardiography
keywords: HEART SEPTAL DEFECTS, ATRIAL; PHONOCARDIOGRAPHY