[Changes of hemagglutinin gene characteristics of influenza virus A(H3N2) during the 2022-2024 influenza season in Beijing]. - Zhang DT; Peng XM; Zhang L; Zhao JC; Xun J; Chu YH; Zou L; Ji LL; Yang P; Wang QY; Lu GL (Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi, 2025)