Some Specific Clinical Features Differentiate Multiple System Atrophy (Striatonigral Variety) from Parkinson's Disease
Arch Neurol 52:294-298, Colosimo,C.,et al, 1995
Multiple System Atrophy presenting as Parkinsonism:Clinical Features and Diagnostic Criteria
JNNP 59:144-151, Albanese,A.,et al, 1995