%0 Journal Article %T Down‐regulatory effect of usnic acid on nuclear factor‐ κ B‐dependent tumor necrosis factor‐ α and inducible nitric oxide synthase expression in lipopolysaccharide‐stimulated macrophages RAW 264.7 %A Jin, Ju‐qing %A Li, Cui‐qin %A He, Lang‐chong %J Phytotherapy Research %V 22 %N 12 %P 1605-1609 %@ 0951-418X %D 2008-12-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve