Degenerative Diseases of the Nervous System, Amyotrophic Lateral Sclerosis
Adams & Victors Principles of Neurology, Chp 39, pg 1109, Ropper, A.H.,et al, 2014
Clinical and Genetic Aspects of Distal Myopathies
Muscle Nerve 24:1440-1450, Saperstein,D.S.,et al, 2001