Separation of Active Ingredients in Grape Procyanidins and its Effects on Proliferation of Peripheral Blood Lymphocytes in Broiler
YANG Jin-yu，WANG Jing，ZHANG Hai-jun，WU Shu-geng，YUE Hong-yuan，QI Guang-hai
中国畜牧兽医 . 2014, (8): 136 -140 .