title: Electrocardiogram of the month. The many faces of ectopy.
mesh_terms: D005117:Cardiac Complexes, Premature / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged