title: Percutaneous balloon valve dilatation.
authors.forename: S J
authors.initials: SJ
authors.lastname: Middleton
mesh_terms: D000368:Aged; D002404:Catheterization; D006350:Heart Valve Prosthesis; D006801:Humans; D008943:Mitral Valve; D008946:Mitral Valve Stenosis / Q000628:therapy*