Tong Y Y, Song W Z
Zhongguo Zhong Yao Za Zhi. 1989 Oct;14(10):611-4, 639-40.
The lignans contained in the fruits of Schisandra chinensis and S. sphenanthern were determined by HPLC. Their chromatograms are different. 7 samples of S. chinensis from 6 habitats contain the same lignans, but in different quantity, while 16 samples of S. sphensnthern contain lignans different both in quality and quantity.