[Beta blocker in heart failure. A little is better than nothing].
D000319:Adrenergic beta-Antagonists / Q000008:administration & dosage*; D000368:Aged; D000369:Aged, 80 and over; D017298:Bisoprolol / Q000008:administration & dosage; D004305:Dose-Response Relationship, Drug; D005060:Europe; D005858:Germany; D006333:Heart Failure / Q000188:drug therapy*; D006801:Humans; D016896:Treatment Outcome
D000319:Adrenergic beta-Antagonists; D017298:Bisoprolol