TY  - JOUR 
T1  - Frequency of non-motor symptoms in Peruvian patients with Parkinson's disease
JO  - Arquivos de Neuro-Psiquiatria
A1  - Cosentino, Carlos
A1  - Nuñez, Yesenia
A1  - Torres, Luis
SN  - 0004-282X
UL  - 10.1590/0004-282X20130005
VL  - 71 
Y1  - 2013
PB  - Brasil 
ER  -