title: Echocardiographic selection of patients with chronic heart failure for vasodilator therapy.
mesh_terms: D002908:Chronic Disease; D004452:Echocardiography; D006333:Heart Failure / Q000188:drug therapy*; D006801:Humans; D014665:Vasodilator Agents / Q000627:therapeutic use*
chemical_list: D014665:Vasodilator Agents