A. Almahrezi, L. Lamb, M. A. Ware, Y. Shir, and I. Al-Zakwani, “Intravenous Lidocaine for Refractory Chronic Orofacial Pain : Two case reports and a literature review”, Sultan Qaboos Univ Med J, vol. 8, no. 2, pp. 205–209, Jul. 2008.