Author Affiliations +
HONG-LEI GAO,1 XIAO-MEI WANG,1 YU-LONG GAO,1 CHAO-YANG FU1
1Division of Avian Infectious Diseases, National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of the Chinese Academy of Agricultural Sciences, 427 Maduan Street, Harbin 150001, P. R. China