Degenerative Diseases of the Nervous System, Friedreich Ataxia
Adams & Victors Principles of Neurology, Chp 39, pg 1102, Ropper, A.H.,et al, 2014
Reversible Corticospinal Tract Disease Due to Hyperthyrodisim
Arch Neurol 34:647, Garcia,C.A.,et al, 1977