CJCP     2023 25 (5):  463-469    ISSN: 1008-8830  CN: 43-1301/R Cross-sectional study on the sleep status and risk factors for sleep problems in infants and young children in Jilin Province ZENG Fan-Jie, ZHAO Zhi-Ruo, LI Xiu-Xin, LI Ping Department of Developmental Pediatrics, Second Hospital of Jilin University, Changchun 130041, China Received: 2022-10-10  Revised: null  Online: null Supporting info