@article{silva_silva_lopes_nahas_2016,  title={Behavior change stages related to physical activity in adolescents from Santa Catarina: prevalence and associated factors},  volume={34},  ISSN={0103-0582},  url={https://doi.org/10.1016/j.rppede.2016.03.017},  DOI={10.1016/j.rppede.2016.03.017},  number={4},  journal={Revista Paulista de Pediatria},  publisher={Sociedade de Pediatria de São Paulo},  author={Silva, Jaqueline Aragoni da and Silva, Kelly Samara da and Lopes, Adair da Silva and Nahas, Markus Vinícius},  year={2016},  month={Oct},  pages={476–483} }