Display of the Epileptogenic Zone on the Frontal Cortical Surface Using Dynamic Voltage Topography of Ictal Electrocorticographic Discharges - Yoshida, F; Morioka, T; Hashiguchi, K; Miyagi, Y; Nagata, S; Ohshio, M; Sasaki, T (min - Minimally Invasive Neurosurgery, 2007)