@article{li_zhang_chen_guan_2016,  title={Effects of purine nucleotide administration on purine nucleotide metabolism in brains of heroin-dependent rats},  volume={52},  ISSN={1984-8250},  url={https://doi.org/10.1590/S1984-82502016000400024},  DOI={10.1590/S1984-82502016000400024},  number={4},  journal={Brazilian Journal of Pharmaceutical Sciences},  publisher={Universidade de São Paulo, Faculdade de Ciências Farmacêuticas},  author={Li, Kun and Zhang, Ping and Chen, Li and Guan, Fengying},  year={2016},  month={Oct},  pages={787–794} }