A strategy for efficient discovery of new natural compounds by integrating orthogonal column chromatography and liquid chromatography/mass spectrometry analysis: Its application in Panax ginseng, Panax quinquefolium and Panax notoginseng to characterize 437 potential new ginsenosides - Yang, W Z; Ye, M; Qiao, X; Liu, C F; Miao, W J; Bo, T; Tao, H Y; Guo, D A (Anal Chim Acta, 2012)