The Relation between Immunological Features and the Positive SARS-CoV-2 Nucleic Acid in Patients with Nonsevere COVID⁃19 by Dong Zhang, Xueren Li, Haibai Sun, Lixia Shi, Shouchun Peng

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Viral RNA Load in Symptomatic and Asymptomatic COVID-19 Omicron Variant-Positive Patients by Qian Wu, Lixia Shi, Haomin Li, Shuping Huang, Hongwei Li, Li Li, Jin Han, Qi Wu, Zhengcun Pei

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Pneumoperitoneum caused by tracheal rupture due to tracheotomy: a case report by Herong Wang, Xue Li, Lixia Shi, Chunxu Guo, Hongzhi Yu, Xing Wang, Jing Zhou, Shuo Zhang, Zhiheng Xing, Chao Cui, Wanjie Yang, Li Li

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‘Dynamic zero-COVID’ policy and viral clearance during an omicron wave in Tianjin, China: a city-wide retrospective observational study by Qi Wu, Yan Xie, Tao Cheng, Junping Wu, Wentao Jiang, Lixia Shi, Xiaolong Liu, Yu Hu, Yahui Feng, Hongxia Shao, Xiaowen Gong, Zhen Song, Saibing Qi, Xueou Liu, Qiujin Shen, Junren Chen

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