title: Letter by Guazzi regarding article "Sleep and exertional periodic breathing in chronic heart failure: prognostic importance and interdependence".
authors.forename: Marco
authors.initials: M
authors.lastname: Guazzi
mesh_terms: D006333:Heart Failure / Q000150:complications* / Q000503:physiopathology; D006801:Humans; D015999:Multivariate Analysis; D010101:Oxygen Consumption; D011379:Prognosis; D015203:Reproducibility of Results; D012119:Respiration; D012891:Sleep Apnea Syndromes / Q000150:complications / Q000503:physiopathology*