title: [Management of highly calcified annular ring during mitral valve surgery].
authors.forename: Mitsuomi
authors.initials: M
authors.lastname: Shimamoto
mesh_terms: D002114:Calcinosis; D006348:Cardiac Surgical Procedures / Q000379:methods; D006801:Humans; D008943:Mitral Valve / Q000473:pathology / Q000601:surgery*