Low Serum Levels of Vitamins A, D, and E Are Associated with Recurrent Respiratory Tract Infections in Children Living in Northern China: A Case Control Study

Open Access

Peer-reviewed

Research Article

Xuguang Zhang,

Affiliation Department of Clinical Nutrition, Harbin Children's Hospital, Harbin, China
⨯
Fengshu Ding,

Affiliation Department of Clinical Nutrition, Harbin Children's Hospital, Harbin, China
⨯
Huaining Li,

Affiliation Department of Clinical Nutrition, Harbin Children's Hospital, Harbin, China
⨯
Wenfeng Zhao,

Affiliation Department of Clinical Laboratory, Harbin Children's Hospital, Harbin, China
⨯
Hong Jing,

Affiliation Department of Clinical Nutrition, Harbin Children's Hospital, Harbin, China
⨯
Yageng Yan,

Affiliation Department of Clinical Nutrition, The first Affiliated Clinical Hospital of Harbin Medical University, Harbin, China
⨯
Yanping Chen

* E-mail: heyypchen@163.com

Affiliation Department of Clinical Nutrition, Harbin Children's Hospital, Harbin, China
⨯

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Vitamin A
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Vitamins
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Vitamin E
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Vitamin D
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Micronutrient deficiencies
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Vitamin D deficiency
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Pediatric infections
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Respiratory infections
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