[The use of nitrous oxide in the diagnosis of left-right shunts].
D054087:Atrial Septum; D006330:Heart Defects, Congenital; D006346:Heart Septum; D006801:Humans; D009609:Nitrous Oxide
D009609:Nitrous Oxide
HEART DEFECTS, CONGENITAL; HEART SEPTUM ATRIAL; NITROUS OXIDE