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A comment on Adequate Vitamin D Levels Cuts Risk of Dying from Covid-19 in Half, Study Finds. Parent comment
Study confirms vitamin D protects against colds and flu
https://news.harvard.edu/gazette/story/2017/02/study-confirm...
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Study confirms vitamin D protects against colds and flu
https://news.harvard.edu/gazette/story/2017/02/study-confirm...