Analysis of detection of acute respiratory infection in children under 12 years old in Pudong New Area， Shanghai from 2019 to 2023 oleh YUAN Yang, ZHANG Lu, LI Zhuyun, ZHANG Yue, HUO Yujia, CHEN Jialiang, LIU Qing, ZOU Wenwei, ZHAO Bing, HAO Lipeng, PAN Lifeng