@article{letro_quagliato_viana_2009,  title={Pain in Parkinson's disease},  volume={67},  ISSN={0004-282X},  url={https://doi.org/10.1590/S0004-282X2009000400003},  DOI={10.1590/S0004-282X2009000400003},  number={3a},  journal={Arquivos de Neuro-Psiquiatria},  publisher={Academia Brasileira de Neurologia - ABNEURO},  author={Letro, Grace Helena and Quagliato, Elizabeth M.A.B. and Viana, Maura Aparecida},  year={2009},  month={Sep},  pages={591–594} }