title: [Degeneration of ball prosthetic valve in mitral ostium].
mesh_terms: D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000601:surgery*; D011474:Prosthesis Design
vernacular_title: Degenerasjon av kuleventil i mitralostiet.