CJCP     2022 24 (12):  1289-1294    ISSN: 1008-8830  CN: 43-1301/R Short-term persistent symptoms in preschool children with mild/common coronavirus disease 2019 caused by Omicron variant infection after discharge: a follow-up study HU Chun-Chun, XU Pu, XU Liu, ZHANG Ying, ZHOU Jian-Guo, WANG Li-Bo, ZHOU Wen-Hao, YE Lan, LU Chun-Mei Department of Child Health Care, Children's Hospital of Fudan University, Shanghai 201102, China Received: 2022-06-08  Revised: null  Online: null Supporting info