A Study on Attenuated Cell-culture Vaccine of Avian Infectious Bronchitis H120Virus
Liu Wenhui, Hu Yuji, Cao Chunjing, Xiao Zhijun, Zhao Jinwang
ACTA AGRICULTURAE BOREALI-SINICA . 1993, (S1): 137 -141 .  DOI: 10.3321/j.issn:1000-7091.1993.z1.029