title: In search of the best prognostic factor in patients with congestive heart failure: the paradox of ejection fraction without prognostic significance and the role of cardiopulmonary exercise testing.
authors: Michele
authors: M
authors: Correale
authors: Fiorella
authors: F
authors: De Rosa
authors: Morena
authors: M
authors: Concilio
authors: Natale D
authors: ND
authors: Brunetti
authors: Matteo
authors: M
authors: Di Biase
mesh_terms: D009202:Cardiomyopathies / Q000503:physiopathology*; D004554:Electric Countershock / Q000295:instrumentation*; D006333:Heart Failure / Q000503:physiopathology*; D006801:Humans; D013318:Stroke Volume; D016277:Ventricular Function, Left