COVID-19 Severity Correlates with Weaker T-Cell Immunity, Hypercytokinemia, and Lung Epithelium InjuryWang, Zhongfang; Yang, Xiaoyun; Zhou, Yumin; Sun, Jing; Liu, Xiaoqing; Zhang, Jing; Mei, Xinyue; Zhong, Jiaying; Zhao, Jincun; Ran, Pixin*Science Citation Index Expanded广州医学院; 1摘要-关键词-