title: Pannus ingrowth on a Bjork-Shiley prosthesis.
mesh_terms: D001021:Aortic Valve / Q000473:pathology; D001024:Aortic Valve Stenosis / Q000601:surgery*; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged