title: [Centered Lillehei-Kaster disk prosthesis in valve substitutions. Initial results].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001021:Aortic Valve / Q000601:surgery; D002648:Child; D005069:Evaluation Studies as Topic; D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis / Q000379:methods; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery
vernacular_title: Próteses pivotantes de disco de Lillehei-Kaster em substituições valvares. Resultados iniciais