Helen Blair Simpson, Rosen, Wilma , Huppert, Jonathan D. , Lin, Shu-Hsing , Foa, Edna B. , and Liebowitz, Michael R. . 2006. “Are There Reliable Neuropsychological Deficits In Obsessive&Ndash;Compulsive Disorder?”. Journal Of Psychiatric Research, 40, Pp. 247 - 257. http://www.journalofpsychiatricresearch.com/article/S0022-3956(05)00050-6/abstract.