title: EKG of the month. PAC-woman.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006801:Humans; D008875:Middle Aged; D009200:Myocardial Contraction