Closure of experimental atrial septal defects in sheep with a special atrial ring clamp.
D000818:Animals; D018376:Cardiovascular Abnormalities / Q000601:surgery*; D006325:Heart Atria; D006344:Heart Septal Defects, Atrial; D012756:Sheep; D034561:Sheep, Domestic
CARDIOVASCULAR DEFECTS, CONGENITAL/surgery