WITHDRAWN: Eight new C21 steroidal glycosides from Cynanchum wilfordii.
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Xiang
Wen-Juan
WJ
School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China.
Liu
Hai-Gang
HG
Wang
Xia-Chang
XC
Gan
Hao
H
Ma
Lei
L
Hu
Li-Hong
LH