[On the indications for extracorporeal circulation in the surgical repair of acquired valvular heart defects].
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D006348:Cardiac Surgical Procedures; D005112:Extracorporeal Circulation; D006321:Heart; D006349:Heart Valve Diseases; D006351:Heart Valves; D006354:Heart, Artificial; D013903:Thoracic Surgery
HEART SURGERY; HEART VALVES/diseases; HEART, MECHANICAL