[Survey on vitamin A deficiency in children under-6-years in China].
Lin L, Liu Y, Ma G, Tan Z, Zhang X, Jiang J, Song X, Wang L, Zhang J, Wang H, Li M.
Lin L, et al. Among authors: liu y.
Zhonghua Yu Fang Yi Xue Za Zhi. 2002 Sep;36(5):315-9.
Zhonghua Yu Fang Yi Xue Za Zhi. 2002.
PMID: 12411191
Chinese.