@article{liang_2021,  title={URBAN SPORTS SERVICE STRUCTURE FROM THE PUBLIC HEALTH CONTEXT},  volume={27},  ISSN={1517-8692},  url={https://doi.org/10.1590/1517-8692202127012020_0114},  DOI={10.1590/1517-8692202127012020_0114},  number={spe},  journal={Revista Brasileira de Medicina do Esporte},  publisher={Sociedade Brasileira de Medicina do Exercício e do Esporte},  author={Liang, Rizhong},  year={2021},  month={Mar},  pages={108–110} }