[Angiocardiographic demonstration of atrial septal defect with the aid of Valsalva's test. A new procedure].
D000790:Angiocardiography; D054087:Atrial Septum; D006330:Heart Defects, Congenital; D006344:Heart Septal Defects, Atrial; D006346:Heart Septum; D006801:Humans
ANGIOCARDIOGRAPHY; HEART DEFECTS, CONGENITAL; HEART SEPTUM ATRIAL