Gennaro, Alessandro, Omar C. G. Gelo, Gloria Lagetto, and Sergio Salvatore. “A Systematic Review of Psychotherapy Research Topics (2000-2016): A Computer-Assisted Approach”. Research in Psychotherapy: Psychopathology, Process and Outcome 22, no. 3 (December 20, 2019). Accessed April 23, 2024. https://www.researchinpsychotherapy.org/rpsy/article/view/429.