title: Atrioventricular junctional premature and escape beats with altered QRS and fusion.
mesh_terms: D000328:Adult; D000368:Aged; D005117:Cardiac Complexes, Premature / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged