title: Asymptomatic severe mitral valve regurgitation: observation or operation?
authors.forename: Hartzell V
authors.initials: HV
authors.lastname: Schaff
mesh_terms: D006348:Cardiac Surgical Procedures; D003657:Decision Making; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000150:complications / Q000401:mortality / Q000601:surgery*; D019370:Observation; D013997:Time Factors; D016896:Treatment Outcome