Inherited Metabolic Diseases of the Nervous System, Infantile Niemann-Pick DiseaseAdams & Victors Principles of Neurology, Chp 37, pg 958, Ropper, A.H.,et al, 2014
Wilson DiseaseMedicine 71:139-164, Brewer,G.J.&Yuzbasiyan-Gurkan,V., 1992