Seperation, Identification and Investigation on Epidemiology of Porcine Reproductive and Respiratory Syndrome Virus
XI Guang-sheng;WU Qi-biao;HUANG Bai-hua;TAN Chun-ping;LIU Wen-juan;LU Qin-zhang
China Animal Husbandry & Veterinary Medicine . 2009, (6): 165 -168 .