@article{cândido_perini_pádua_junqueira_2020,  title={Prevalence of and factors associated with the use of methylphenidate for cognitive enhancement among university students},  volume={18},  ISSN={1679-4508},  url={https://doi.org/10.31744/einstein_journal/2020AO4745},  DOI={10.31744/einstein_journal/2020AO4745},  journal={einstein (São Paulo)},  publisher={Instituto Israelita de Ensino e Pesquisa Albert Einstein},  author={Cândido, Raissa Carolina Fonseca and Perini, Edson and Pádua, Cristiane Menezes de and Junqueira, Daniela Rezende},  year={2020},  pages={eAO4745} }