@article{cosentino_nuñez_torres_2013,  title={Frequency of non-motor symptoms in Peruvian patients with Parkinson's disease},  volume={71},  ISSN={0004-282X},  url={https://doi.org/10.1590/0004-282X20130005},  DOI={10.1590/0004-282X20130005},  number={4},  journal={Arquivos de Neuro-Psiquiatria},  publisher={Academia Brasileira de Neurologia - ABNEURO},  author={Cosentino, Carlos and Nuñez, Yesenia and Torres, Luis},  year={2013},  month={Apr},  pages={216–219} }