title: ECG of the month. Perturbations. Atrial and ventricular premature impulses.
authors.affiliation: Dept of Medicine, Texas Tech Regional Academic Health Center, El Paso.
authors.forename: J I
authors.initials: JI
authors.lastname: Martinez-Lopez
mesh_terms: D000328:Adult; D005117:Cardiac Complexes, Premature / Q000175:diagnosis* / Q000503:physiopathology; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006352:Heart Ventricles; D006801:Humans