Song, J. ., Dai, R. ., Deng, Y. ., & Lv, F. . (2018). Rapid structure prediction by HPLC-ESI-MS<sup>n</sup> of twenty-five polyoxypregnane tetraglycosides from Dregea sinensis with NMR confirmation of eight structures. Phytochemistry, 147, 147-157. https://doi.org/10.1016/j.phytochem.2017.12.021 (Original work published 2018)