1 Department of Epileptology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan; Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan; Department of Neurology, National Hospital Organization Sendai Medical Center, Sendai, Miyagi, Japan; Japan Young Epilepsy Section, Kodaira, Tokyo, Japan. Electronic address: takafumi.kubota.c7@tohoku.ac.jp.
2 Japan Young Epilepsy Section, Kodaira, Tokyo, Japan; Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
3 Department of Epileptology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan; Japan Young Epilepsy Section, Kodaira, Tokyo, Japan; Department of Pediatrics, Wayne State University, Detroit, MI, USA.