[Open approach to the aortic and mitral valve in conditions of artificial circulation].
D001021:Aortic Valve / Q000601:surgery*; D006348:Cardiac Surgical Procedures; D006354:Heart, Artificial; D006801:Humans; D008943:Mitral Valve / Q000601:surgery*
AORTIC VALVE/surgery; HEART, MECHANICAL; MITRAL VALVE/surgery