A 64-year-old Man with Progressive Paraspinal Muscle Weakness
Neurol 86:e4-e9, Schneider, R.,et al, 2016
Degenerative Diseases of the Nervous System, Progressive Bulbar Palsy
Adams & Victors Principles of Neurology, Chp 39, pg 1111, Ropper, A.H.,et al, 2014