[EVALUATION OF DIFFERENT TYPES OF ARTIFICIAL VALVES].
D001021:Aortic Valve; D001187:Artificial Organs; D006348:Cardiac Surgical Procedures; D006321:Heart; D006351:Heart Valves; D006354:Heart, Artificial; D013903:Thoracic Surgery
AORTIC VALVE; ARTIFICIAL ORGANS; HEART SURGERY; HEART VALVES; HEART, MECHANICAL