Fig. 1From: WISC-IV performance of children with Chronic Tic Disorder, Obsessive–Compulsive Disorder and Attention-Deficit/Hyperactivity Disorder: results from a German clinical studyChart of the sample selection. CTD: Chronic Tic Disorder; OCD: Obsessive–Compulsive Disorder; ADHD: Attention-Deficit/Hyperactivity Disorder; WISC-IV: Wechsler Intelligence Scale for Children, 4th editionBack to article page