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Published in 2021 at "International Journal of Environmental Research and Public Health"
DOI: 10.3390/ijerph18041676
Abstract: Background. Generally, most vitamin D in the human body (90–95%) is produced in the skin during exposure to sunlight. The effectiveness of this process depends on several biological and physical factors, e.g., age or latitude.…
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Keywords:
among hospitalized;
four seasons;
lack seasonal;
seasonal variations ... See more keywords