Ho Jin Kim1, Amelia Evoli2. 1. From the Department of Neurology (H.J.K.), Research Institute and Hospital of National Cancer Center, Goyang, Korea; and Institute of Neurology (A.E.), Catholic University, Policlinico Gemelli, Rome, Italy. hojinkim@ncc.re. 2. From the Department of Neurology (H.J.K.), Research Institute and Hospital of National Cancer Center, Goyang, Korea; and Institute of Neurology (A.E.), Catholic University, Policlinico Gemelli, Rome, Italy.