@article{kummer_teixeira_2009,  title={Major depression in Parkinson's disease},  volume={31},  ISSN={1516-4446},  url={https://doi.org/10.1590/S1516-44462009000400017},  DOI={10.1590/S1516-44462009000400017},  number={4},  journal={Brazilian Journal of Psychiatry},  publisher={Associação Brasileira de Psiquiatria},  author={Kummer, Arthur and Teixeira, Antonio Lucio},  year={2009},  month={Dec},  pages={387–387} }