Prevalence of Extended-Spectrum β-Lactamase in Escherichia coli Isolates from Food-producing Animals
ZHENG Hong-qing;DENG Yu-ting;HE Liang-ying;YANG Tong;YAO Qiong-fen;TIAN Wei;LIU Jian-hua 
China Animal Husbandry & Veterinary Medicine . 2011, (12): 163 -165 .