Sunlight and Protection Against Influenza
收藏NBER2018-02-01 更新2025-01-04 收录
下载链接：
https://www.nber.org/papers/w24340
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资源简介：
Recent medical literature suggests that vitamin D supplementation protects against acute respiratory tract infection. Humans exposed to sunlight produce vitamin D directly. This paper investigates how differences in sunlight, as measured over several years across states and during the same calendar
提供机构：
美国国家经济研究局
创建时间：
2018-02-01
