title: Broken fractals: where's the break?
authors.forename: R D
authors.initials: RD
authors.lastname: Berger
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D004562:Electrocardiography; D017709:Fractals; D006333:Heart Failure / Q000188:drug therapy* / Q000503:physiopathology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D016014:Linear Models
chemical_list: D000319:Adrenergic beta-Antagonists