title: [Can beta-blockers become first-line therapy in chronic heart failure?].
authors.affiliation: Klinika Kardiologii, 4 Wojskowy Szpital Kliniczny z Poliklinika, ul. Weigla 5, 50-981 Wrocław. piotrponikowski@4wsk.pl
authors.forename: Piotr
authors.initials: P
authors.lastname: Ponikowski
authors.forename: Waldemar
authors.initials: W
authors.lastname: Banasiak