Phenylketonuria:Findings at MR Imaging & Localized in Vivo H-1 MR Spectroscopy of Brain in Pts with Early TreatmentRadiology 201:413-420, Pietz,J.,et al, 1996
Catecholamines & Neurologic DiseasesNEJM 293:274, Moskowitz,M.A.,et al, 1975