Regional gray matter abnormalities in panic disorder: a voxel-based morphometry study - Uchida, Ricardo R.; Del Ben, Cristina Marta; Busatto, Geraldo F.; Duran, Fábio L. S.; Guimarães, Francisco Silveira; Crippa, José Alexandre de Souza; Araújo, David; Santos, Antônio Carlos dos; Graeff, Frederico Guilherme (Psychiatry Research: Neuroimaging, 2008)