儿童维生素A缺乏与反复呼吸道感染相关性研究
黄娜, 成晓君, 刘颖, 李雪宁, 朱星华, 贺嘉, 刘颖
Correlation between vitamin A deficiency and recurrent respiratory tract infection in children
HUANG Na, CHENG Xiao-jun, LIU Ying, LI Xue-ning, ZHU Xing-hua, HE Jia, LIU Ying
中国儿童保健杂志 . 2020, (8): 925 -927 .  DOI: 10.11852/zgetbjzz2019-1321