@article{zhang_song_2007,  title={Detection of retinoic acid receptor complex using mass spectrometry},  volume={18},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532007000300005},  DOI={10.1590/S0103-50532007000300005},  number={3},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Zhang, Lin and Song, Zeqing},  year={2007},  pages={526–531} }