CJCP     2023 25 (10):  1072-1077    ISSN: 1008-8830  CN: 43-1301/R Research progress on circulating tumor DNA as a biomarker for minimal residual disease in solid tumors CHEN Ying, WEN Fei-Qiu Shenzhen Children's Hospital, Shenzhen, Guangdong 518034, China Received: 2023-04-12  Revised: null  Online: null Supporting info