CJCP     2024 26 (3):  262-268    ISSN: 1008-8830  CN: 43-1301/R Factors influencing the occurrence of small for gestational age at different degrees ZHANG Yi-Min, SHAO Shu-Ming, YU Chen, ZHANG Xiao-Rui, LIU Zheng, LI Yang-Yang, QIN Jiong Department of Pediatrics, Peking University People's Hospital, Beijing 100044, China (Zhang X-R, Email: icy.zhang@163.com); School of Public Health, Peking University, Beijing 100191, China Received: 2023-08-14  Revised: null  Online: null Supporting info null