title: [The significance of persistent left superior vena cava in pacemaker therapy].
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D010138:Pacemaker, Artificial; D014683:Vena Cava, Superior / Q000002:abnormalities*
vernacular_title: Persistáló bal vena cava superior jelentösége a pacemaker therapiában.