Impact of COVID-19-Related Social Restrictions on Vitamin D Levels in Japanese Newborns and Infants: A Retrospective Cohort Study
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This study evaluated the impact of the COVID-19 pandemic on vitamin D status in Japanese newborns and early infants by comparing serum 25-hydroxyvitamin D (25(OH)D) concentrations between pandemic and non-pandemic periods. A total of 805 newborns aged ≤4 days... ...
