@article{schmidt_schmidt_2021,  title={The role of the purinergic system in the acupuncture-induced analgesia},  volume={4},  ISSN={2595-3192},  url={https://doi.org/10.5935/2595-0118.20210034},  DOI={10.5935/2595-0118.20210034},  number={2},  journal={BrJP},  publisher={Sociedade Brasileira para o Estudo da Dor},  author={Schmidt, André Prato and Schmidt, Sérgio Renato Guimarães},  year={2021},  month={Jun},  pages={172–179} }