CJCP     2021 23 (5):  542-547    ISSN: 1008-8830  CN: 43-1301/R A review on the effect of Claudin-18 on bronchopulmonary dysplasia in preterm infants ZUO Jing-Ye, TONG Ya-Jie, YUE Dong-Mei Department of Neonatology, Shengjing Hospital, China Medical University, Shenyang 110004, China Received: 2021-01-07  Revised: 2021-02-19  Online: null Supporting info