CJCP     2023 25 (8):  805-811    ISSN: 1008-8830  CN: 43-1301/R A preliminary study on a new method for evaluating brain maturation in preterm infants TIAN Yi-Li, FANG Xiu-Ying, WANG Ying-Jie, MAO Jian Department of Neonatology, Shengjing Hospital of China Medical University, Shenyang 110004, China Received: 2023-03-29  Revised: null  Online: null Supporting info null