CJCP     2024 26 (4):  371-377    ISSN: 1008-8830  CN: 43-1301/R Serum folate and vitamin B12 levels and their association with neurodevelopmental features in preschool children with autism spectrum disorder WU Yuan, YANG Ting, CHEN Hong-Yu, LONG Dan, XIANG Xue-Li, FENG Yu-Ru, WEI Qiu-Hong, CHEN Jie, LI Ting-Yu Children's Nutrition Research Center, Children's Hospital of Chongqing Medical University/Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders/Ministry of Education Key Laboratory of Child Development and Disorders/National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China Received: 2023-10-20  Revised: null  Online: null Supporting info null