Managing the Neuropsychiatric Symptoms of Parkinson's Disease
Neurol 50:S33-S38, Lieberman,A., 1998
Parkinson's Disease
NEJM 339:1044-1053,1130-1143, Lang,A.E.&Lozano,A.M., 1998
Managing the Late Complications of Parkinson's Disease
Neurol 49:549-557, Waters,C.H., 1997