Degenerative Diseases of the Nervous System, Werdnig-Hoffman Disease, Spinal Muscular Atrophy
Adams & Victors Principles of Neurology, Chp 39, pg 1116, Ropper, A.H.,et al, 2014
Clinicopath Conf
Motor Neuron Disease, Progressive-Muscular-Atrophy Type, Case 43-1992, NEJM 327:1298-130592., , 1992