Avian influenza H9N2 seroprevalence among swine farm residents in China
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Z. Ning | Shoujun Li | W. Qi | Heng Wang | C. Ke | Guihong Zhang | Lifang Wang | Zi-guo Yuan | Honglang Gu | Shuyi He | Xinliang Fu | Yun Zheng | P. Zhou | Wan-jun Zhu