J.D. Huppert, Cahill, S.P. , and Foa, E.B. . 2009. “Anxiety Disorders: Cognitive&Ndash;Behavioral Therapy”. In B. J. Sadock, V. A. Sadock, & Ruiz, P. (Eds.), Kaplan & Sadock’s Comprehensive Textbook Of Psychiatry (9Th Edition). Philadelphia, PA: Lippincott, Williams, & Wilkins. http://pluto.huji.ac.il/ huppertj/Anxiety_Disorders_Cognitive_Behavioral_Therapy.pdf.