Gònzalez, Gabriel, and Vanetza Quezada. “A Brief Cognitive-Behavioral Intervention for Stress, Anxiety and Depressive Symptoms in Dental Students”. Research in Psychotherapy: Psychopathology, Process and Outcome 19, no. 1 (April 18, 2016). Accessed May 24, 2019. https://www.researchinpsychotherapy.org/index.php/rpsy/article/view/192.