Changes in Gray Matter Volume and White Matter Microstructure in Adolescents with Obsessive-Compulsive Disorder - Zarei, M; Mataix-Cols, D; Heyman, I; Hough, M; Doherty, J; Burge, L; Winmill, L; Nijhawan, S; Matthews, PM; James, A (BIOLOGICAL PSYCHIATRY, 2011)