Spinobulbar Muscular Atrophy Can Mimic ALS:The Importance of Genetic Testing in Male Patients with Atypical ALSNeurol 49:568-572, Parboosingh,J.S.,et al, 1997
Epidemiology of Motor-Neuron DiseasesNEJM 288:1047, Bobwick,A.R.,et al, 1973