Alkasiy, K. S., Al-Habib, M.F., AND Sabrei, D. A.. " Effects of Thyrotoxicosis on the Structure of Salivary Glands (Submandibular Glands) in Swiss Albino Mice (Mus musculus)" Ibn AL- Haitham Journal For Pure and Applied Science [Online], Volume 21 Number 2 (19 September 2017)