Optimizing extraction technology of total flavonoids in Cynanchum wilfordii and its antioxidant effects
YANG Shen-ming1,2, WANG Ying-shun1,2, WANG Zhen-ji1,2
Journal of Shanghai University(Natural Science Edition) . 2015, (2): 220 -228 .  DOI: 10.3969/j.issn.1007-2861.2014.03.001