Dynamic monitoring of blood 25 (OH) D level and its effect on pulmonary disease in very premature infants
Xi Hongmin, Yang Lijuan, Yin Xiangyun, Yang Ping, Ma Lili, Li Xianghong
Clinical Focus . 2022, (8): 717 -722 .  DOI: 10.3969/j.issn.1004-583X.2022.08.008