1 From the UCL Institute of Neurology (M.S., U.-M.S., N.W., K.P.B.), London, UK; Attiko Hospital (M.S.), University of Athens, Greece; and Philipps University (M.S.), Marburg, Germany.
2 From the UCL Institute of Neurology (M.S., U.-M.S., N.W., K.P.B.), London, UK; Attiko Hospital (M.S.), University of Athens, Greece; and Philipps University (M.S.), Marburg, Germany. [email protected].