Creutzfeldt-Jakob Disease and Related Transmissible Spongiform EncephalopathiesNEJM 339:1994-2004, Johnson,R.T. & Gibbs,Jr.,C.J., 1998
Hereditary Spastic Paraplegia:Advances in Genetic ResearchNeurol 46:1507-1514, Fink,J.K.,et al, 1996