EX/RP=exposure and ritual prevention; OCD=obsessive-compulsive disorder; SRI=serotonin reuptake inhibitor; Y-BOCS=Yale-Brown Obsessive Compulsive Scale.Reproduced from Simpson HB et al. Cognitive-Behavioral Therapy vs Risperidone for Augmenting Serotonin Reuptake Inhibitors in Obsessive-Compulsive Disorder: A Randomized Clinical Trial. JAMA Psychiatry 2013;70(11):1190–1199. With permission from the American Medical Society.