Gradually Progressive Spastic Ataxia in a Young Man Steadily Unsteady
JAMA Neurol 74:238-241, Dubey, D.,et al, 2017
Degenerative Diseases of the Nervous System, Primary Lateral Sclerosis
Adams & Victors Principles of Neurology, Chp 39, pg 1112, Ropper, A.H.,et al,