Huntington Disease: Clinical Features and Diagnosis
UptoDate Dec 2017, Oksana Suchowersky, 2017
Neurologic Aspects of Cobalamin Deficiency
Medicine 70:229-245, Healton,E.B.,et al, 1991
The Thyroid Gland:Its Relationship to Neurology
In Handbook of Clin Neurol, Vinken & Bruyn (Ed) , North Holland Publ Co, Amsterdam 27:255, Greene,R., 1976