1 From the Department of Neurosurgery (Z.L.), Huashan Hospital, Fudan University, Shanghai, P.R.China; Department of Neurosurgery (L.M., Y.Z., C.L.), Beijing Tiantan Hospital, Capital Medical University, P.R.China; and Department of Neurosurgery (Y.Z.), Peking University International Hospital, Beijing, P.R.China. lichunde@bjtth.org.
2 From the Department of Neurosurgery (Z.L.), Huashan Hospital, Fudan University, Shanghai, P.R.China; Department of Neurosurgery (L.M., Y.Z., C.L.), Beijing Tiantan Hospital, Capital Medical University, P.R.China; and Department of Neurosurgery (Y.Z.), Peking University International Hospital, Beijing, P.R.China.