title: Diagnosis of wide QRS tachyarrhythmias: poor atrial echogram specificity in cases of atrioventricular association.
mesh_terms: D003937:Diagnosis, Differential; D004452:Echocardiography; D006801:Humans; D009200:Myocardial Contraction; D013610:Tachycardia / Q000175:diagnosis* / Q000503:physiopathology