Saleh M. Alegayel, H. N. A. A. A. A. F. M. A. ,. “Correlation Between Nails Biting and Temporomandibular Joint Disorders and Emotional Status Among Teenagers in Riyadh: A Cross Sectional Study”. International Journal of Medical Science and Clinical Invention, vol. 4, no. 1, Jan. 2017, doi:10.18535/ijmsci/v4i1.16.