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)