Girerd, N Persistent left superior vena cava with absent right superior vena cava: a difficult cardiac pacemaker implantation. [electronic resource] - International journal of cardiology Mar 2009 - e117-9 p. digital Publication Type: Case Reports; Letter ISSN: 1874-1754 Standard No.: 10.1016/j.ijcard.2007.07.161 doi Subjects--Topical Terms: AgedCardiac Pacing, Artificial--methodsElectrodes, ImplantedHumansMalePacemaker, ArtificialPhlebographyVena Cava, Superior--abnormalities