Parkinson Disease Subtypes
JAMA 71:499-504, Thenganatt, M. & Jankovic, J., 2014
Invited Article: Changing Concepts in Parkinson Disease: Moving Beyond the Decade of the Brain
Neurol 70:1996-2003, Marras,C. &Lang,A., 2008
A 60-Year-Old Man with Parkinson's Disease
JAMA 275:716-722, Olanow,C.W., 1996