Pantothenate Kinase - Associated Neurodegeneration (PKAN)
Emedicine.Medscape Sept, Hanna, P.A. & Benbadis, S.R., 2018
Huntington Disease: Clinical Features and Diagnosis
UptoDate Dec 2017, Oksana Suchowersky, 2017
Diseases of the Basal Ganglia-Their Relation to Disorders of Movement
Lancet 1099, 1960, Nov., Denny-Brown,D., 1960