valve
The usefulness of intraoperative echocardiography in evaluating       valve disease, valve defects, and the results of surgical repair of       atrioventricular septal defects is also discussed.
The usefulness of intraoperative echocardiography in evaluating        @SUBJECT$  @PREDICAT$  @OBJECT$ , valve defects, and the results of surgical repair of       atrioventricular septal defects is also discussed.