@article{machado_machado_cunali_2012,  title={Use of chondroitin sulphate and glucosamine sulphate in degenerative changes in TMJ: a systematic review},  volume={17},  ISSN={2176-9451},  url={https://doi.org/10.1590/S2176-94512012000400006},  DOI={10.1590/S2176-94512012000400006},  number={4},  journal={Dental Press Journal of Orthodontics},  publisher={Dental Press International},  author={Machado, Eduardo and Machado, Patricia and Cunali, Paulo Afonso},  year={2012},  month={Jul},  pages={e1–e5} }