Degenerative Diseases of the Nervous System, Amyotrophic Lateral Sclerosis
Adams & Victors Principles of Neurology, Chp 39, pg 1109, Ropper, A.H.,et al, 2014
Neurologic Disorders in Renal Failure (1st of Two Parts)
NEJM 294:143, Raskin,N.H.,et al, 1976