Inherited Metabolic Diseases of the Nervous System, The Phenylketonuria
Adams & Victors Principles of Neurology, Chp 37, pg 968, Ropper, A.H.,et al, 2014
Neurological Deterioration in Young Adults with Phenylketonuria
Lancet 336:602-605, Thompson,A.J.,et al, 1990
Diagnosis of Treatable Wilson's Disease
NEJM 298:1347, Cartwright,G.E., 1978