[Late results of prosthetic valve replacement in children (author's transl)].
D000293:Adolescent; D001021:Aortic Valve / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D006330:Heart Defects, Congenital / Q000601:surgery; D006350:Heart Valve Prosthesis; D006801:Humans; D008943:Mitral Valve / Q000601:surgery; D013997:Time Factors