Degenerative Diseases of the Nervous System, Progressive Bulbar Palsy
Adams & Victors Principles of Neurology, Chp 39, pg 1111, Ropper, A.H.,et al, 2014
Lymphoproliferative Disorders and Motor Neuron Disease:An Update
Neurol 48:1671-1678, Gordon,P.H.,et al, 1997