title: Fibrous tissue ring: an uncommon cause of severe prosthetic valve stenosis.
authors.affiliation: Department of Cardiac Surgery, Hospital, S. Leonardo, Salerno, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Masiello
authors.forename: V
authors.initials: V
authors.lastname: Cassano
authors.forename: G
authors.initials: G
authors.lastname: Di Benedetto
mesh_terms: D004696:Endocarditis / Q000150:complications / Q000473:pathology*; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve; D008946:Mitral Valve Stenosis / Q000601:surgery*; D016459:Prosthesis-Related Infections / Q000150:complications / Q000473:pathology*; D012214:Rheumatic Heart Disease / Q000601:surgery*