Comparison of plasma vitamin A levels and grades in healthy children and recurrent respiratory tract in-fection children of different ages
LI Na
CI Yijing
ZHENG Chunmei
JIN Chunhua
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Publication Date:2021-07-25
Online Publishing Date:2025-08-15(First online date of this platform, not the publication date of the document)
Pages:4( 35-38 )
Shandong Medical Journal

Shandong Medical Journal

ISTICPKU
ISSN:1002-266X
Year, Vol.(Issue):2021,61(21)