1. Division of Neurology, Department of Medicine (K.-C.T., W.C.Y.L., Y.-K.W., R.K.C.L., A.H.Y.C., K.-K.L., M.-Y.T., R.T.F.C., K.K.L.), Queen Mary Hospital, LKS Faculty of Medicine, The University of Hong Kong.
2. Division of Neurosurgery, Department of Surgery (O.N.Y.C., A.C.-O.T.), Queen Mary Hospital, LKS Faculty of Medicine, The University of Hong Kong.
3. Department of Accident and Emergency, Queen Mary Hospital, Hong Kong (W.-M.K.).