@article{klein-júnior_andrade_cechinel-filho_bresolin_2014,  title={Validation of an hplc method for the determination of 1,7-dihydroxy-2,3-methylenedioxyxanthone in extracts obtained from Polygala cyparissias A. St. Hil. & Moq. (Polygalaceae) and evaluation of the influence of its content on the gastroprotective activity},  volume={37},  ISSN={0100-4042},  url={https://doi.org/10.5935/0100-4042.20140047},  DOI={10.5935/0100-4042.20140047},  number={2},  journal={Química Nova},  publisher={Sociedade Brasileira de Química},  author={Klein-Júnior, Luiz Carlos and Andrade, Sérgio Faloni de and Cechinel-Filho, Valdir and Bresolin, Tania Mari Bellé},  year={2014},  month={Apr},  pages={277–280} }