Study on dietary screening model for preschool children with vitamin A deficiency in Banan District of Chongqing
PENG Rong, WEI Xiao-ping, LIANG Xiao-hua, et al
上海交通大学学报（医学版） . 2015, (5): 753 .  DOI: 11.3969/j.issn.1674-8115.2015.05.025