Degenerative Diseases of the Nervous System, Progressive Bulbar Palsy
Adams & Victors Principles of Neurology, Chp 39, pg 1111, Ropper, A.H.,et al, 2014
Safety and Factors Related to Survival After Percutaneous Endoscopic Gastrostomy in ALS
Neurol 53:1123-1125, Chio,A.,et al, 1999