Tonkaboni, A., and B. Maraghehpour. “Oral Lichen Planus in a Child in Association With Psychological Stress: A Case Report”. Journal of Craniomaxillofacial Research, Vol. 5, no. 3, Sept. 2018, pp. 136-8, http://jcr.tums.ac.ir/index.php/jcr/article/view/248.