Association between lower P300 amplitude and smaller anterior cingulate cortex volume in patients with posttraumatic stress disorder: a study of victims of Tokyo subway sarin attack. - Tsuyoshi Araki; Kiyoto Kasai; Hidenori Yamasue; Nobumasa Kato; Noriko Kudo; Toshiyuki Ohtani; Kazuyuki Nakagome; Kenji Kirihara; Haruyasu Yamada; Osamu Abe; Akira Iwanami (NeuroImage, 2005)