Clinical features of children with coronavirus disease 2019 caused by Delta variant infection in different age groups
SU Hang, DUAN Feng-Yang, REN Xian-Qing, ZHANG Xia, YAN Yong-Bin
CJCP . 2023, (3): 289 -294 .  DOI: 10.7499/j.issn.1008-8830.2209102