孕妇维生素A水平影响因素调查

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刘科莹1陶雪峰1何莉茹1路娟1王亚琴2

The Investigation of influencing factors of vitamin A levels of pregnant women

LIU Keying1, TAO Xuefeng1, HE Liru1, LU Juan1, WANG Yaqin2

中国计划生育学杂志 . 2019, (7): 945 .