Effects of corydyceps polysaccharide on liver fibrosis induced by DMN in rats Investigation on relationship between flavonoid content and inhibitory ability to nitrosamine synthesis for eleven Chinese herbal medicines Advances in study of anticancer properties of Allii Macrostemonis Bulbus Effects of Antioxidant from Vine Tea on Blocking Synthesis of N-nitrosamine Research of herb components on scavenging harmful components and reducing cytotoxicity of cigarette smoke EFFECT OF IRRADIATION ON TSNAs IN CIGARETTE Changes in Wnt pathway inhibiting factors in nitrosamine-induced esophageal precancerosis lesions and effect of Gexia Zhuyu decoction Reverse effect of Yinchenhao decoction in dimethyl nitrosamine-induced hepatic fibrosis in rats