HB Simpson, Foa, EB , Liebowitz, MR , Ledley, DR , Huppert, JD , Cahill, S, Vermes, D, Schmidt, AB , Hembree, E, Franklin, M, Campeas, R, Hahn, CG , Petkova, E, Simpson, Helen Blair , Foa, Edna B, Liebowitz, Michael R, Ledley, Deborah Roth , Huppert, Jonathan D, Cahill, Shawn , and Vermes, Donna . 2008. “A Randomized, Controlled Trial Of Cognitive-Behavioral Therapy For Augmenting Pharmacotherapy In Obsessive-Compulsive Disorder.”. American Journal Of Psychiatry, 165, Pp. 621 - 630. https://ajp.psychiatryonline.org/doi/abs/10.1176/appi.ajp.2007.07091440.