From the Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (P.L., X.L., Y.-X.L.); and Department of Neurosurgery, 307 Hospital, PLA, Beijing, P.R. China (P.L., C.H., D.-S.L., L.D.).(2016-01時点)
