Khakpoor, Sahel, Jahangir Mohammadi Bytamar, and Omid Saed. 2019. “Reductions in Transdiagnostic Factors As the Potential Mechanisms of Change in Treatment Outcomes in the Unified Protocol: A Randomized Clinical Trial”. Research in Psychotherapy: Psychopathology, Process and Outcome 22 (3). https://doi.org/10.4081/ripppo.2019.379.