1 From the Divisions of Neurology (Y.G., A.C.Y.C.) and Infectious Diseases (D.L.L.B., J.S.), Department of Medicine, National University Health System; and Department of Diagnostic Imaging (A.M.), National University Hospital, Singapore.
2 From the Divisions of Neurology (Y.G., A.C.Y.C.) and Infectious Diseases (D.L.L.B., J.S.), Department of Medicine, National University Health System; and Department of Diagnostic Imaging (A.M.), National University Hospital, Singapore. [email protected].