title: Reply 1.
authors.affiliation: Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Schroll
authors.forename: Christoph
authors.initials: C
authors.lastname: Birner
authors.forename: Michael
authors.initials: M
authors.lastname: Arzt
mesh_terms: D045422:Continuous Positive Airway Pressure / Q000379:methods*; D005260:Female; D006333:Heart Failure / Q000150:complications*; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D008297:Male; D012891:Sleep Apnea Syndromes / Q000628:therapy*; D014851:Wakefulness / Q000502:physiology*