Shuo Wang1 , Mingjie Wang1 , Xiaohe Yu1 , Chuanding Cao1 , Ying Ding1 , Mei Lv1 , Yang Liu1 , Meiyan Chu1 , Keren Fang1 , Zhengchang Liao1✉ and Shaojie Yue1✉ Nonlinear relationship between vitamin D status on admission and bronchopulmonary dysplasia in preterm infants Pediatric Research . Oct 2024