title: Origin of atrial fibrillation from the pulmonary veins in a mitral patient.
mesh_terms: D001281:Atrial Fibrillation / Q000150:complications* / Q000209:etiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000150:complications* / Q000601:surgery; D011667:Pulmonary Veins