1. Wilson JD, Braunwald E. Harrison′s Principles of Internal Medicine (14 th ed. New York: McGraw-Hill; 1998.
2. Unusual manifestation of hypothyroidism;Klein,;Arch Intern Med,1984
3. Dysarthria as the leading symptom of hypothyroidism;Stollberger;American Journal of Otolaryngology,2001
4. Ackermann H, Wiles CM. Dysarthria and Dysphonia. In: Brandt T, Caplan LR, editors. Neurological disorders: course and treatment. San Diego(CA): Academic Press; 1996. pp 193-6.
5. Light chain myeloma with oropharyngeal amyloidosis presenting as bulbar paralysis;Finsterer;J Neurol Sci,1997