[Comparison of epidemiological characteristics and severity of influenza virus and respiratory syncytial virus infection in hospitalized children under 5 years old in Changzhou, Jiangsu Province]. - Wu D; Zhao J; Jiang JY; Han CL; Hu FF; Yao F; Wang QW; Zhang T; Zhao GM; Lyu XF; Tang HB; Wang FM (Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi, 2026)