Fitness analysis of H9N2 avian influenza virus
YANG Hao-yi, HU Ming-da, GONG Xing-fei, JIN Yuan, WANG Bo-qian, LIANG Long, YUE Jun-jie, CHEN Wei, REN Hong-guang
Military Medical Sciences . 2022, (7): 530 -533 .  DOI: 10.7644/j.issn.1674-9960.2022.07.009