title: Structural changes in ventriculoaortic porcine valved conduit implanted in a child.
mesh_terms: D000293:Adolescent; D001022:Aortic Valve Insufficiency / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000601:surgery*; D001705:Bioprosthesis; D004868:Equipment Failure; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008944:Mitral Valve Insufficiency / Q000601:surgery; D011183:Postoperative Complications / Q000601:surgery