Asayesh, Mohammad Hassan, and Mobina Mohammadi. “Efficacy of a Psychoanalytic Paradoxical Therapy Model on Nail Biting Symptoms and Anxiety: A Clinical Case Study”. Mental Health and Lifestyle Journal, vol. 4, no. 2, Mar. 2026, pp. 1-22, https://www.mhljournal.com/index.php/mhlj/article/view/166.