title: [Porcine xenograft valve: a clinical study (author's transl)].
mesh_terms: D000293:Adolescent; D000328:Adult; D001705:Bioprosthesis; D005260:Female; D006349:Heart Valve Diseases / Q000601:surgery; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged