1Department of Neurosurgery, Seoul Metropolitan Government–Seoul National University Boramae Medical Center, Seoul 07061, Korea
2Department of Neurosurgery, Seoul Metropolitan Government–Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul 07061, Korea
3Department of Pathology, Seoul Metropolitan Government–Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul 07061, Korea JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/