Effects of three C21 steroidal saponins from Cynanchum auriculatum  on cell growth and cell cycle of human lung cancer A549 cells Experimental Study of Anti-injurous Effect of Cynanchum auriculatum Royle ex Wight on Ozonic Toxicity Isolation and Physico-chemical Properties of Polysaccharides from the Root of Cynanchum ouriculatum Royle ex Wight Effect of C21 teroidal glycoside from root of Cynanchum auriculatum on D-galactose induced aging model mice THE CHEMICAL CONSTITUENTS OF CYNANCHUM AURICULATUM Studies on in vitro Antitumor Activity of Total Steroidal Glycoside from the Root of Cynanchum auriculatum Content Determlnation of Nutrient Constltuents in Various Processed Samples of Cynanchum auriculatum Royle ex Wigkt Studies on chemical constituents in root tuber of Cynanchum auriculatum