The Changed Rule of Infected Piglets by a Mutant of Porcine Reproductive and Respiratory Syndrome Virus with Nsp2 Gene Deletion
ZHANG Feng-hua, LU Xiao-yan, XU Hong-yun, ZHAO Lin, LIU Yu-song, FAN Xu, XIA Ping-an, CUI Bao-an
ACTA AGRICULTURAE BOREALI-SINICA . 2011, (3): 68 -71 .  DOI: 10.7668/hbnxb.2011.03.015