Creutzfeldt-Jakob Disease and Related Transmissible Spongiform EncephalopathiesNEJM 339:1994-2004, Johnson,R.T. & Gibbs,Jr.,C.J., 1998
Leukoencephalopathy in Childhood Leukemiaet al. , Neurol 27:609977., Devivo,D.C., 1977