title: Cardiac-resynchronization therapy.
authors: Robert S
authors: RS
authors: Rosenstein
authors: David
authors: D
authors: Parra
mesh_terms: D005080:Exercise Test; D006333:Heart Failure / Q000145:classification* / Q000628:therapy*; D006801:Humans; D011379:Prognosis; D012720:Severity of Illness Index; D013318:Stroke Volume