%0 Journal Article %T Optimization on Preparation Condition of Propolis Flavonoids Liposome by Response Surface Methodology and Research of Its Immunoenhancement Activity %A Ju Yuan %A Yu Lu %A Saifuding Abula %A Yuanliang Hu %J Evidence-Based Complementary and Alternative Medicine %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/505703 %U http://dx.doi.org/10.1155/2013/505703