Use of intravascular carbon dioxide gas to demonstrate interatrial septal defects.
D002245:Carbon Dioxide; D006330:Heart Defects, Congenital; D006343:Heart Septal Defects; D006344:Heart Septal Defects, Atrial; D006346:Heart Septum / Q000002:abnormalities*
D002245:Carbon Dioxide
CARBON DIOXIDE; CARDIAC SEPTUM/abnormalities