@article{ferretti_santos_giuriatti_gauer_teo_2018,  title={Sleep quality in the elderly with and without chronic pain},  volume={1},  ISSN={2595-3192},  url={https://doi.org/10.5935/2595-0118.20180027},  DOI={10.5935/2595-0118.20180027},  number={2},  journal={BrJP},  publisher={Sociedade Brasileira para o Estudo da Dor},  author={Ferretti, Fatima and Santos, Daiana Teodoro dos and Giuriatti, Leticia and Gauer, Ana Paula Maihack and Teo, Carla Rosane Paz Arruda},  year={2018},  month={Apr},  pages={141–146} }